INATURALIST Observations 226192809

INATURALIST Observations 164422017
GBIFID: 4127430889;; Coordinate Uncertainty in Meters: 30765.00000.

INATURALIST Observations 240187429
Occurrence Remarks: Secon pitcure is a crop; Coordinate Uncertainty in Meters: 27908.00000.

GBIFID: 4606803386;; Coordinate Uncertainty in Meters: 27847.00000.

GBIFID: 4919241693;; Coordinate Uncertainty in Meters: 27847.00000.

GBIFID: 4414388805; Occurrence Remarks: baby with a button rattle;; Coordinate Uncertainty in Meters: 27847.00000.

GBIFID: 4417004040; Occurrence Remarks: First egress in 2018;; Coordinate Uncertainty in Meters: 27847.00000.

Mercer, Pennsylvania: 41.19083, -80.082366: : 6/15/2026: Madeline Boser: 15 Jun 2026 ; Coordinate Uncertainty in Meters: 27847.00000.

GBIFID: 4015315348; Occurrence Remarks: egress;; Coordinate Uncertainty in Meters: 27847.00000.

GBIFID: 4926235862; Occurrence Remarks: Easter Massasauga rattlesnake spotted at Jennings Environmental Education Center. Butler County Pennsylvania.;; Coordinate Uncertainty in Meters: 27847.00000.

Occurrence Remarks:; Coordinate Uncertainty in Meters: 27661.00000.

Calhoun, Michigan: 42.270346, -84.880286: : 9/2/2025: kcputman: 2 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.257193, -83.749626: : 5/29/2024: Emily Schultheis: 29 May 2024 ; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: While walking dogs, observed snake had been very recently hit by a vehicle.; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: Found on a group field trip run by the 2024 SSAR conference. Handled under permit.; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: Eastern Massasauga rattlesnake; Coordinate Uncertainty in Meters: 27692.00000.

Jackson, Michigan: 42.102554, -84.326192: : 8/12/2024: Zach Kemp: 12 Aug 2024 ; Coordinate Uncertainty in Meters: 27692.00000.

Jackson, Michigan: 42.084376, -84.151649: : 6/15/2025: klanehar: 15 Jun 2025 ; Coordinate Uncertainty in Meters: 27692.00000.

Van Buren, Michigan: 42.107154, -86.202037: : 5/2/2026: zancat: 2 May 2026 ; Coordinate Uncertainty in Meters: 27692.00000.

Washtenaw, Michigan: 42.244415, -83.765832: : 4/20/2025: kkeatingvt: 20 Apr 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.234904, -83.622212: : 9/14/2025: mathtutor: 14 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.223869, -83.67519: : 9/18/2025: Kristen Landau: 18 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Van Buren, Michigan: 42.249531, -86.010243: : 9/10/2025: angela_moynihan: 10 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Van Buren, Michigan: 42.175624, -86.022247: : 5/2/2026: hmayhem: 2 May 2026 ; Coordinate Uncertainty in Meters: 27692.00000.

Washtenaw, Michigan: 42.27025, -83.731942: : 4/3/2026: Emerson Laverty: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: Three newborn Eastern Massasauga rattlesnakes found dead on road in vicinity of Paw Paw Lake. This is the first time observing newborn Eastern Massasauga in this vicinity for several years. Former thriving population along Paw Paw Lake Drive pre 1992, with hints of a population still existing per these recent, albeit deceased, observations. First two snakes were aprox. 8-8.5 in length, bulky with no rattle [newborn], third was smaller around 5-6.5. Thought Eastern Hognose on the smaller snake, but body marks were too similar to prior Eastern Massasauga also found nearby. Terrain is upland from a large wetland/fen system on the eastern side of Paw Paw Lake in Kalamazoo County, MI.; Coordinate Uncertainty in Meters: 27692.00000.

Cass, Michigan: 42.005678, -85.901074: : 6/7/2025: duddwoods: 7 Jun 2025 ; Coordinate Uncertainty in Meters: 27692.00000.

Washtenaw, Michigan: 42.279838, -83.799788: : 6/26/2025: John Christensen: 26 Jun 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.231115, -83.616564: : 7/24/2026: Ryan Zucker: 24 Jul 2026 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.212982, -83.649173: : 6/28/2025: Atlas Meadow: 28 Jun 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.23229, -83.702201: : 6/25/2025: Zach Kemp: 25 Jun 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Van Buren, Michigan: 42.284709, -86.024647: : 9/10/2025: alexrachel: 10 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: Occurrence Remarks: Pipe massy! Lool; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: Occurrence Remarks: Fresh litter. Some shed skin around the babies.; Coordinate Uncertainty in Meters: 27661.00000.

Livingston, Michigan: 42.469971, -83.680872: : 9/2/2025: Beverly Einowski: 2 Sep 2025 ; Coordinate Uncertainty in Meters: 27630.00000.

Occurrence Remarks: Middle of the road, moved w/long pole; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: rattlesnake habitat is a focus point at this park; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: Highland oaks, Oakland county park, Michigan.; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: Highland oaks, county park walking trail; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: Eastern Massasauga Rattlesnake. About a foot to a foot and a half in length.; Coordinate Uncertainty in Meters: 27630.00000.

Washtenaw, Michigan: 42.317507, -83.699133: : 6/27/2024: Max Roberts: 27 Jun 2024 ; Coordinate Uncertainty in Meters: 27661.00000.

Oakland, Michigan: 42.511351, -83.42503: : 8/8/2024: Alyson: 8 Aug 2024 ; Coordinate Uncertainty in Meters: 27630.00000.

Washtenaw, Michigan: 42.315857, -83.646046: : 8/17/2024: Kenneth Johnson: 17 Aug 2024 ; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: looks to be a baby; Coordinate Uncertainty in Meters: 27599.00000.

Washtenaw, Michigan: 42.391559, -83.699405: : 6/3/2024: kikibattlestar: 3 Jun 2024 ; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: It was sunbathing on the trail and slithered off. EMR?; Coordinate Uncertainty in Meters: 27599.00000.

Jackson, Michigan: 42.400956, -84.453794: : 9/27/2025: Matheus Januario: 27 Sep 2025 ; Coordinate Uncertainty in Meters: 175704.00000.

Washtenaw, Michigan: 42.397781, -83.758341: : 10/22/2022: cherylsj: 22 Oct 2022 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.39179, -83.611863: : 4/4/2026: tokamak: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 27661.00000.

Van Buren, Michigan: 42.298683, -86.144347: : 9/10/2025: Ian Crafts: 10 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Kalamazoo, Michigan: 42.377751, -85.551322: : 5/31/2025: fishiedr: 31 May 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.358467, -83.799849: : 9/30/2025: claremdecker: 30 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.305941, -83.633906: : 4/3/2026: autless: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.307607, -83.72374: : 4/12/2026: daksu: 12 Apr 2026 ; Coordinate Uncertainty in Meters: 27661.00000.

Livingston, Michigan: 42.465491, -84.140492: : 10/3/2022: marvrette: 3 Oct 2022 ; Coordinate Uncertainty in Meters: 27630.00000.

Occurrence Remarks: tail; Coordinate Uncertainty in Meters: 27630.00000.

Livingston, Michigan: 42.443576, -83.861795: : 10/22/2022: evajeneva: 22 Oct 2022 ; Coordinate Uncertainty in Meters: 27630.00000.

Oakland, Michigan: 42.507377, -83.609656: : 10/1/2023: leslie_artist: 1 Oct 2023 ; Coordinate Uncertainty in Meters: 27630.00000.

Jackson, Michigan: 42.339574, -84.152746: : 10/24/2023: doug reith: 24 Oct 2023 ; Coordinate Uncertainty in Meters: 27661.00000.

Occurrence Remarks: Eastern massasauga; Coordinate Uncertainty in Meters: 27630.00000.

Oakland, Michigan: 42.649032, -83.156984: : 10/4/2024: erinsuzanne: 4 Oct 2024 ; Coordinate Uncertainty in Meters: 27599.00000.

Oakland, Michigan: 42.562201, -83.455213: : 10/21/2017: bbeauchene: 21 Oct 2017 ; Coordinate Uncertainty in Meters: 27630.00000.

Washtenaw, Michigan: 42.30873, -83.771349: : 10/26/2021: Max Miley: 26 Oct 2021 ; Coordinate Uncertainty in Meters: 27661.00000.

Kalamazoo, Michigan: 42.412163, -85.302301: : 6/1/2026: Olivia Constantino: 1 Jun 2026 ; Coordinate Uncertainty in Meters: 27630.00000.

Oakland, Michigan: 42.67584, -83.511046: : 6/8/2026: bmannluke: 8 Jun 2026 ; Coordinate Uncertainty in Meters: 36984.00000.

Barry, Michigan: 42.571631, -85.31: : 7/1/2024: oliviikate: 1 Jul 2024 ; Coordinate Uncertainty in Meters: 27630.00000.

Barry, Michigan: 42.48701, -85.273668: : 6/26/2026: henryblack: 26 Jun 2026 ; Coordinate Uncertainty in Meters: 27630.00000.

Washtenaw, Michigan: 42.325643, -83.706307: : 6/28/2025: Atlas Meadow: 28 Jun 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Oakland, Michigan: 42.459773, -83.655675: : 10/18/2024: Juliet Berger: 18 Oct 2024 ; Coordinate Uncertainty in Meters: 27630.00000.

Washtenaw, Michigan: 42.309225, -83.622159: : 6/28/2025: Atlas Meadow: 28 Jun 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Van Buren, Michigan: 42.314011, -85.905318: : 4/30/2024: jkimmbo: 30 Apr 2024 ; Coordinate Uncertainty in Meters: 27661.00000.

Washtenaw, Michigan: 42.350575, -83.644329: : 9/5/2025: claremdecker: 5 Sep 2025 ; Coordinate Uncertainty in Meters: 27661.00000.

Calhoun, Michigan: 42.402497, -85.280433: : 9/9/2025: eashby: 9 Sep 2025 ; Coordinate Uncertainty in Meters: 27630.00000.

Livingston, Michigan: 42.456436, -83.902542: : 9/10/2025: katiehassan90: 10 Sep 2025 ; Coordinate Uncertainty in Meters: 27630.00000.

Livingston, Michigan: 42.444312, -83.871546: : 7/28/2024: jmpickard: 28 Jul 2024 ; Coordinate Uncertainty in Meters: 27630.00000.

Livingston, Michigan: 42.600297, -83.747154: : 7/22/2026: Ann Maguire: 22 Jul 2026 ; Coordinate Uncertainty in Meters: 27599.00000.

Allegan, Michigan: 42.732746, -85.731305: : 7/24/2024: carlylynch: 24 Jul 2024 ; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: I was unable to get video, but it was about 2-3 feet away hiding in the vegetation. You can hear the rattle faintly in the soundbite.; Coordinate Uncertainty in Meters: 27568.00000.

Lake Hurron, Ontario: 44.81662, -79.840063: : 9/9/2025: Taylor Kennedy: 9 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Snake was discovered warming itself by the fire pit and our surprise startled it. There were no direct interactions, but the snake rattled as we kept our distance before it made its way to the end of the peninsula and swam across the river to the opposite bank.; Coordinate Uncertainty in Meters: 27317.00000.

Unknown, Ontario: 44.801634, -79.97804: : 5/17/2026: joe_crowley: 17 May 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.80415, -79.914015: : 5/27/2026: stevejarvis: 27 May 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Oakland, Michigan: 42.705422, -83.588447: : 6/6/2026: Mason bird: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 27599.00000.

Onondaga, New York: 43.052786, -76.174542: : 9/20/2025: Miles Hamilton: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 27537.00000.

GBIFID: 3456644840; Occurrence Remarks: moved safely off the road;; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.819502, -79.597867: : 7/2/2026: hannahdodington: 2 Jul 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.804857, -79.592418: : 6/27/2026: Mindy Brophy: 27 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Michigan, Michigan: 44.209237, -86.867522: : 5/12/2025: Lauren McLaurin: 12 May 2025 ; Coordinate Uncertainty in Meters: 299253.00000.

Lake Michigan, Michigan: 43.577873, -87.1263: : 5/12/2025: Kim: 12 May 2025 ; Coordinate Uncertainty in Meters: 268223.00000.

Occurrence Remarks: Baby, approx 6; Coordinate Uncertainty in Meters: 27599.00000.

Oakland, Michigan: 42.729036, -83.120203: : 9/20/2025: iliketortles: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: Massassauga Rattlesnake seen on the road, it was hit by a truck and is injured or dying.; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Initially found under rock/cave and then reported to researchers; Coordinate Uncertainty in Meters: 27253.00000.

Simcoe, Ontario: 44.808563, -79.470408: : 7/25/2025: Taylor Kennedy: 25 Jul 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Simcoe, Ontario: 44.800205, -79.533197: : 7/25/2025: Taylor Kennedy: 25 Jul 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Had a bit of blood around it. I believe it was struck by a car.; Coordinate Uncertainty in Meters: 27599.00000.

Occurrence Remarks: Dead on a trail, unsure if it died due to natural causes or if someone stepped on it.; Coordinate Uncertainty in Meters: 27599.00000.

Iosco, Michigan: 44.455686, -83.521989: : 6/26/2026: Alison Staelgraeve: 26 Jun 2026 ; Coordinate Uncertainty in Meters: 27317.00000.

Occurrence Remarks: Possibly juvenile; Coordinate Uncertainty in Meters: 27599.00000.

Oakland, Michigan: 42.723427, -83.182791: : 9/20/2025: hardcorelore: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 27599.00000.

GBIFID: 3961209537; Occurrence Remarks: Dead on trail;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 1883544725; Occurrence Remarks: Single adult female observed moving through wooded thicket. Snake wandered ca. 10 meters before seeking shelter under woody debris.;; Coordinate Uncertainty in Meters: 27568.00000.

GBIFID: 1899776391; Occurrence Remarks: found in my garden,beautiful.;; Coordinate Uncertainty in Meters: 27285.00000.

GBIFID: 1899776384; Occurrence Remarks: heard rattle first, stopped,backed away,grabbed camera & boots. beautiful.;; Coordinate Uncertainty in Meters: 27285.00000.

GBIFID: 4121016156; Occurrence Remarks: Observed two individuals;; Coordinate Uncertainty in Meters: 27568.00000.

GBIFID: 4130188771; Occurrence Remarks: Crushed by vehicle;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 1933592580; Occurrence Remarks: Large (about 1 metre long) rattlesnake crossing the road.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4405276934; Occurrence Remarks: Road mortality - juvenile Massasauga;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 1132417047; Occurrence Remarks: Photo is a little blurry, from a cell phone in the early evening... But the markings are clear to see.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4417138636; Occurrence Remarks: DOR Passed by again, a couple of hours after the picture was taken to notice the rattle has been clean cut out from the rest of the body.;; Coordinate Uncertainty in Meters: 27285.00000.

GBIFID: 4903848528; Occurrence Remarks: Released CS;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4908699181; Occurrence Remarks: Crushed by vehicle;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4908121908; Occurrence Remarks: Released, one on left side of photo;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4919240017; Occurrence Remarks: Released;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4919127022; Occurrence Remarks: It was rattling so it was most definitely a Massasauga Rattlesnake.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4924098407; Occurrence Remarks: CK release;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4921497498; Occurrence Remarks: Released;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4923936397; Occurrence Remarks: live on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4925856826; Occurrence Remarks: There are two Massasauga Rattlesnakes in this photo. Theyre mating. Images dont show the rhythmic movements and tail thrashing. I have more photos taken with a high quality camera as well as videos.;; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.816535, -79.852721: : 6/22/2019: Georgian Bay Islands National Park: 22 Jun 2019 :

GBIFID: 5206015880; Occurrence Remarks: Possible SFD infection?;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2331899918; Occurrence Remarks: One of two found. Captured for research, then released.;; Coordinate Uncertainty in Meters: 27537.00000.

GBIFID: 1291097164; Occurrence Remarks: 22 degrees c sunny;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2826217842; Occurrence Remarks: Approx. 60 cm long, 9 years old (9 layers on rattle). Seen about 10:30pm, very close to cottage.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2864777165; Occurrence Remarks: Massasauga My coordinates on my GPS were N44░ 49.159 W79░ 32.146 and I have converted them. Massasauga was in the middle of Swift Rapids Road between Turtle Lake and Sumbell Lake. Successfully and safely moved the snake to the bush on the side of the road.;; Coordinate Uncertainty in Meters: 27285.00000.

GBIFID: 3302086452; Occurrence Remarks: Massasauga rattlesnake was in my backyard...I am just north of the Sauble Falls Provincial Park.;; Coordinate Uncertainty in Meters: 27285.00000.

GBIFID: 3321051498; Occurrence Remarks: Went for a shoreline walk today, observed 7 snakes within one hour;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3325930343; Occurrence Remarks: Dead on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2397711050; Occurrence Remarks: Not actual location due to species sensitivity;; Coordinate Uncertainty in Meters: 27537.00000.

GBIFID: 3391542105; Occurrence Remarks: Road kill;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3398835146; Occurrence Remarks: I was on a trail run on Thanksgiving Monday when I stopped for a drink. I heard the rattle before I saw the snake. I moved back about 12 feet and we hung out for a couple of minutes before the snake slithered away. It was an unusually warm day approx. 24C with a mix of sun and cloud.;; Coordinate Uncertainty in Meters: 27253.00000.

Livingston, Michigan: 42.734172, -83.793386: : 6/2/2025: lilrhi88: 2 Jun 2025 ; Coordinate Uncertainty in Meters: 27599.00000.

Iosco, Michigan: 44.499556, -83.51782: : 7/17/2026: Chace Scholten: 17 Jul 2026 ; Coordinate Uncertainty in Meters: 27317.00000.

Unknown, Ontario: 44.847555, -79.581456: : 5/31/2026: Taylor Kennedy: 31 May 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3873513869; Occurrence Remarks: Small: 30-40cm;; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.861087, -79.552759: : 9/18/2025: Taylor Kennedy: 18 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.874794, -79.418069: : 8/20/2025: Taylor Kennedy: 20 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Simcoe, Ontario: 44.834723, -79.520525: : 8/20/2025: Taylor Kennedy: 20 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.872564, -79.419099: : 7/25/2025: Taylor Kennedy: 25 Jul 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.832614, -79.851518: : 7/26/2025: Chad Smith: 26 Jul 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.868176, -79.907058: : 6/14/2025: Liam Thorne: 14 Jun 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.869414, -79.626119: : 6/3/2026: hannahdodington: 3 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: DOR; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.826169, -79.953509: : 6/13/2026: Suriyan Partheepan: 13 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.840452, -79.974402: : 6/15/2026: stevejarvis: 15 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.879283, -79.888526: : 9/28/2025: Sofia Vermeulen: 28 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3456512819; Occurrence Remarks: moved off the road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3456535856; Occurrence Remarks: moved off road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3456938397; Occurrence Remarks: Sadly already hit on road and in process of dying;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3859071010; Occurrence Remarks: Baby, crushed by vehicle;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3874171343; Occurrence Remarks: 40-50cm;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3874011571; Occurrence Remarks: This little girl seems to have set up shop in one of my expansive dry-stone garden walls. SheÆs been in the same place for at least four days. Could she be nesting? SheÆs picked a good spotà I have a vibrant frog pond a mere ten feet away.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3873987317; Occurrence Remarks: Road kill;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3873092327; Occurrence Remarks: Pair of Massassauga rattlesnakes directly on Massassauga trail;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3873953557; Occurrence Remarks: DOR;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4129796367; Occurrence Remarks: Whats in the foxs mouth. The fox: https://www.inaturalist.org/observations/131429362/;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3903400396; Occurrence Remarks: Juvenile, getting some heat before the cool evening;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4138458585; Occurrence Remarks: Young EMR;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4138255560; Occurrence Remarks: Crossing Greenough Point Road to Block 66;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4138446332; Occurrence Remarks: Four individuals observed, including a very large (likely gravid) female which was ready to shed.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4171658561; Occurrence Remarks: EMR Road mortality - second one in 24 hrs in Greenough Point Rd.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4436404391; Occurrence Remarks: Caught and released at CQE;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4453811373; Occurrence Remarks: Observed on the 2017 Ontario Reptile & Amphibian Survey Course. Two different angles of the same snake and then wide angles showing the snake in habitat (it is visible if you look closely).;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4453929602; Occurrence Remarks: Observed on the 2017 Ontario Reptile & Amphibian Survey Course.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4453881680; Occurrence Remarks: Most of these rattle so reluctantly, I was hoping for an opportunity to photograph a rattle in motion, but not sure I would get it - so Im really happy with the last two photos. Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4453972328; Occurrence Remarks: Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454049225; Occurrence Remarks: Try and spot it in the first photo. The second photo makes it easier. Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4872416193; Occurrence Remarks: Relocated;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4892221002; Occurrence Remarks: Three snakes location and fresh feces.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4901592025; Occurrence Remarks: Released;; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.828103, -79.902674: : 6/24/2024: Samuelle Simard-Provenτal: 24 Jun 2024 :

GBIFID: 4908779490; Occurrence Remarks: DOR;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4919618747; Occurrence Remarks: I hoped this wasnÆt the one I saw the day before. It was maybe 100 metres away from where I first spotted it.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4924056258; Occurrence Remarks: Crossing a footpath - rattled to alert its presence. Photo by A Proctor;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4953028417; Occurrence Remarks: Roadkill was observed by family member. went back about 10 minutes later and the individual had been completely skinned with no signs of the skin, head or rattle near the body. Humans? They are a threatened species in the area.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4937066795; Occurrence Remarks: Location along the shoreline is approximative;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4952207823; Occurrence Remarks: Juvenile Roadkill;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2283212737; Occurrence Remarks: Basking on mixed forest litter, in area of open rock and juniper bushes near cottage;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 5205939731; Occurrence Remarks: Double snek;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 5217274888; Occurrence Remarks: Heard it rattle before I saw it;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 5216942389; Occurrence Remarks: 1 snake in photo travelling away through thick vegetation after being disturbed by the monitoring team. A second snake followed suit through the grass. A third snake remained curled up in the vegetation. This was the best photo we got before moving on to avoid further disturbance.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2818572267; Occurrence Remarks: We saw this dude crossing the road today. I think Pygmy Rattlesnake?;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2864822494; Occurrence Remarks: Saw 2 on August 1 in grass around cottage shed late in the afternoon. They were separated by approximately 15 ft. The first rattled and startled me. August 2nd my wife saw another probably the same, about dusk. We thought we saw one close to the cottage stairs but my daughter recognized it as Hank our resident water snake.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2850839066; Occurrence Remarks: Moved safely off road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2864661450; Occurrence Remarks: Near a boggy marsh. About the size of a garter snake but thicker. Stayed on path despite thumping ground.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2856547881; Occurrence Remarks: Alive on road.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2856645315; Occurrence Remarks: Rattled its tail, looked healthy and rather full.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3302062681; Occurrence Remarks: Two snakes observed but only one photographed.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3327983057; Occurrence Remarks: sadly, this is my first observation of this species;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3327694271; Occurrence Remarks: Crossing road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3343935329; Occurrence Remarks: One of two new born;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3384035401; Occurrence Remarks: DOR;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3384960532; Occurrence Remarks: Adult male in good body condition;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3391488099; Occurrence Remarks: Road kill;; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Silent and still beside trail on a cool, cloudy day; Coordinate Uncertainty in Meters: 27253.00000.

Simcoe, Ontario: 44.82761, -79.443783: : 9/14/2025: Taylor Kennedy: 14 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.861386, -79.434379: : 9/13/2025: Taylor Kennedy: 13 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Simcoe, Ontario: 44.838239, -79.574151: : 9/13/2025: Taylor Kennedy: 13 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.863502, -79.544477: : 9/13/2025: Taylor Kennedy: 13 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.836161, -79.807266: : 9/13/2025: c_aristone: 13 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Occurrence Remarks: AOR; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: Unfortunately one of two that were hit by a car.; Coordinate Uncertainty in Meters: 27222.00000.

Muskoka, Ontario: 44.919546, -79.72441: : 10/26/2025: Kayla Whatling: 26 Oct 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.997779, -79.540541: : 9/21/2025: donnadilello: 21 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Leelanau, Michigan: 44.97992, -85.657657: : 9/10/2025: Kyle Fillmore: 10 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.968269, -79.913661: : 5/26/2026: Owen Stefanich: 26 May 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.899748, -79.570555: : 8/17/2024: Taylor Kennedy: 17 Aug 2024 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Michigan, Michigan: 44.940117, -85.393571: : 9/12/2025: Susan Fawcett: 12 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.921256, -79.442776: : 8/20/2025: Taylor Kennedy: 20 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4067194139; Occurrence Remarks: Shed skin pieces found at a rock crevice;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3456266420; Occurrence Remarks: Neonate;; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.888737, -79.421456: : 5/22/2026: Taylor Kennedy: 22 May 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3455553075; Occurrence Remarks: Fatally injured on road. Last death throes...;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3881683907; Occurrence Remarks: Captured to be moved away from campsites by Parks Canada.;; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.929756, -79.925983: : 9/16/2025: fionadunbar: 16 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: AOR; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: An old tail injury left her rattle-less! Loved her pale grey background; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Juvenile; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Relocated it; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.910289, -79.951295: : 6/14/2025: Liam Thorne: 14 Jun 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.941279, -79.516513: : 7/25/2025: Taylor Kennedy: 25 Jul 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.926415, -79.54338: : 7/25/2025: Taylor Kennedy: 25 Jul 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Torrance Barrens Dark-Sky Preserve, ON; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Rattled, fully in open, but fled under rock. ID also confirmed by Joe Crowley; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.963074, -79.454758: : 6/6/2026: twitchyrennie: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

CAN.9.22.1_1, Ontario: 44.93026, -79.938142: : 6/7/2026: Kathleen Houlahan Chayer: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.981209, -79.863991: : 6/7/2026: Christoph Ng: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.994245, -79.851081: : 6/7/2026: thegardenobserver: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.945635, -79.885742: : 6/11/2025: Allanah Vokes: 11 Jun 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.98476, -79.990269: : 6/10/2025: Allanah Vokes: 10 Jun 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.899233, -79.667672: : 6/13/2026: aleksandermell: 13 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Chased by on off leash dog :(; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.951655, -79.41613: : 6/16/2026: Riley-Brendan Walsh: 16 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.922559, -81.295357: : 7/12/2026: Graham Cameron: 12 Jul 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: DOA; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 44.956284, -79.675085: : 6/15/2026: hikingirl: 15 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Dead on road; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 44.952371, -79.709479: : 6/28/2026: gbaycoddage: 28 Jun 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3455363403; Occurrence Remarks: Helped off road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3455687250; Occurrence Remarks: Predated;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3455586989; Occurrence Remarks: I think it was a very young snake as its rattle was not developed well;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3858380882; Occurrence Remarks: Released from CK;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3859590704; Occurrence Remarks: About to shed (milky-blue eyes);; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3873413483; Occurrence Remarks: Dead on road; someone ran over the head;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3881685090; Occurrence Remarks: Sighted several times by cottagers over several days.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3892513877; Occurrence Remarks: Moving through white pine, red oak, red maple forest;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3902967781; Occurrence Remarks: Rattlesnake found dead on side of road :(;; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 44.958099, -79.996633: : 6/23/2018: Georgian Bay Islands National Park: 23 Jun 2018 :

GBIFID: 4067282099; Occurrence Remarks: Gravid female, first year for her;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 1891299990; Occurrence Remarks: Sunny, 25 C. Mature snake in the shade of shrubs beside marl pond. Same location as last week, where a pair was observed. Audio only this time.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4134100605; Occurrence Remarks: CK release;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4134067160; Occurrence Remarks: Massasauga Gestation site: mother and offspring on shoreline shelf rock;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4137830637; Occurrence Remarks: Rattlesnake run over on the road.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4145782743; Occurrence Remarks: Taken by my dad;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4153910102; Occurrence Remarks: Dead on minor gravel road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4153496527; Occurrence Remarks: Photo cred: Jeff Cooper;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4153650601; Occurrence Remarks: DOR. Removed from roadway.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4162471558; Occurrence Remarks: The snake was in the middle of a road. After photographing it, I moved it to the ditch.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4165690525; Occurrence Remarks: EMR road mortality at a property where construction is ongoing.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4171227019; Occurrence Remarks: Roadside mortality- Massasauga. Greenough Harbour Road.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4172010520; Occurrence Remarks: Crossing road from Block 66 to the lakeside of Greenough Point Road.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4172228350; Occurrence Remarks: Crossing the road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4177535331; Occurrence Remarks: Hard to see in this picture but I believe there are neonates hiding in the crevice.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4420953774; Occurrence Remarks: Crushed by vehicle;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4413695684; Occurrence Remarks: Juvenile - possibly molting?;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4414036647; Occurrence Remarks: EMR crossing road into Block 66 Forested parcel.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4436124777; Occurrence Remarks: On a rock barren close to turtle bay;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4436180125; Occurrence Remarks: Caught and released from camp Kitchi;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4436273160; Occurrence Remarks: Gestation site off of Dossy;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454008838; Occurrence Remarks: Basking on forest floor near edge of trail in closed-canopy oak forest. Observed on the 2017 Ontario Reptile & Amphibian Survey Course. First Massasauga seen by entire course - a lot of people were around here. Many had walked right past the snake before it was noticed. The snake did not really react and never rattled. First three photos are initial *in situ*; last four are two minutes later and show the extent of the snakes reaction - turning slightly and hiding the rattle.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454065556; Occurrence Remarks: Shown *in situ* in a sedge meadow. Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454088679; Occurrence Remarks: Observed on the 2017 Ontario Reptile & Amphibian Survey Course. This is *in situ* of course. Second shot shows habitat; snake is visible if you look closely.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454089805; Occurrence Remarks: Investigating a possible gestation area, I came upon this male on the move. Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454051446; Occurrence Remarks: Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4454051459; Occurrence Remarks: Observed on the 2017 Ontario Reptile & Amphibian Survey Course. All relevant permits were in place.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3090852459; Occurrence Remarks: Snake was relocated from active campground;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4892146517; Occurrence Remarks: Basking in open. Not detected earlier in the day.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4901100172; Occurrence Remarks: basking on rock outcrop ~3 ft long, going into shed. Could not identify sex. Was near another massassauga of similar size (total count of 2 in area).;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4901271863; Occurrence Remarks: basking on rock outcrop ~3 ft long, going into shed. Female - possibly gravid. Was near another massassauga of similar size (total count of 2 in area). .;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4908312737; Occurrence Remarks: Released one on the right side of photo;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4911070777; Occurrence Remarks: Massasauga crossing road into Block 66 (lot).;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4919732722; Occurrence Remarks: Released - possible fungal infection;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4921661032; Occurrence Remarks: Crossing into Block 66;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4945744783; Occurrence Remarks: Seen 3 times in same spot on different days;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 4953128500; Occurrence Remarks: Released from CS;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 5168090097; Occurrence Remarks: Juvenile!;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2294502464; Occurrence Remarks: Sunny, 21 C.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2294525029; Occurrence Remarks: Rattling from cover. Typical July haunt near wetland. Sunny, 22 C.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5215933068; Occurrence Remarks: Location approximated after the fact. Found on high rock island, didnÆt react when I got close. Seemed to live under the nearby rock;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2350412917; Occurrence Remarks: seen at the base of the front steps to the cottage on Burnt Island, Cognashene, Georgian Bay;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2423135390; Occurrence Remarks: Healthy adult basking on cottage road. Clear, 22 C.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1841332554; Occurrence Remarks: Road mortality on GHL Road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 1843243592; Occurrence Remarks: Roadkill on GHL presumably 2 juvi fatalities;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2814167251; Occurrence Remarks: On the Bruce trail;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2823171413; Occurrence Remarks: Rattled at me;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2826392894; Occurrence Remarks: Approx. 60 cm long, 9 years old 9 (9 layers on rattle). Seen 10om, very close to cottage.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2850655961; Occurrence Remarks: Spotted a breeding pair randomly beside the footpath. Both were between 60 and 70 cm, with the female being slightly larger than the male. Both rattled when I had approached.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2850838140; Occurrence Remarks: Unfortunately Dead on Road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2850748296; Occurrence Remarks: Spotted 2 Massasauga Rattlesnakes in the yard of our cottage in Gravenhurst, Ontario, on Sunday, August 9th, 2020. Originally only saw one, but a few hours later, there were two piled together.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2856628856; Occurrence Remarks: Dead on road. Eaten a vole recently.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2856553869; Occurrence Remarks: Dead male on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2856696982; Occurrence Remarks: Dead on road. Within last 2-3 hours.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2864781771; Occurrence Remarks: Young. On a rock hill near a bog. Appeared to have tiny rattle. No rattle sound.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2868098729; Occurrence Remarks: At about 2 pm. We were walking 2 dogs along the trail at Devils Monument when we heard the rattle along side the trail. I stepped forward, my girlfriend with both dogs stopped still. I eventually went back to handle one dog and we passed the snake without incident, but it rattled almost the whole time.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2873976922; Occurrence Remarks: Stunning himself on the road. Rattled when I got closer to take a picture. Made it safely off the road.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 2898420703; Occurrence Remarks: Benjamin spotted it! Looks like maybe it just ate.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3124572095; Occurrence Remarks: Dead on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3302101138; Occurrence Remarks: Basking in deciduous swamp.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3325769334; Occurrence Remarks: Alive on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3325791290; Occurrence Remarks: Alive on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3327705842; Occurrence Remarks: Took the picture of the tree to remember where the camera was and saw this. Stepped all around it.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3327706244; Occurrence Remarks: Dead on road;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3330686037; Occurrence Remarks: Located on west shore of large island on McCrae Lake, Ontario;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3330431212; Occurrence Remarks: Campsite 308;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3333121680; Occurrence Remarks: Found them getting heat from the road, stopped and got em off by annoying him with rocks.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3333186529; Occurrence Remarks: Found in fen;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3335103012; Occurrence Remarks: moved off road to safety;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3335553363; Occurrence Remarks: Two living close together;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3343919306; Occurrence Remarks: Female with 2 young;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3355643309; Occurrence Remarks: 2 adults and about 20 baby snakes.;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3355231929; Occurrence Remarks: Mature, apparently healthy specimen on the Lake Huron shoreline.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3385173525; Occurrence Remarks: On the Old Stone Road Trail - it bit my poodle :);; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3384863594; Occurrence Remarks: Neonate;; Coordinate Uncertainty in Meters: 27253.00000.

GBIFID: 3391514077; Occurrence Remarks: EMR snake dead on the road;; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.975463, -79.487534: : 8/10/2025: Patrick Jackson: 10 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.95969, -79.980236: : 8/22/2025: sixsous: 22 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 45.001209, -79.976277: : 6/29/2026: Taylor Kennedy: 29 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Muskoka, Ontario: 45.000862, -79.725307: : 8/24/2025: Erica Overbeek: 24 Aug 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Beausoleil Island- Huron trail just north of the Massassauga Trail intersection; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Beausoleil Island - two young rattlesnakes off of Rockview Trail just north of Portage intersection. They did not rattle their tails. The tails had some yellow, with very few segments at the end.; Coordinate Uncertainty in Meters: 27253.00000.

Muskoka, Ontario: 44.971065, -79.559926: : 8/27/2025: edporopat: 27 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Spotted one adult (pictures here) and one juvenile; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.902635, -79.889293: : 8/22/2025: stevejarvis: 22 Aug 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Unknown, Ontario: 44.995325, -79.822002: : 7/15/2026: Owen Stefanich: 15 Jul 2026 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Crushed; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Fresh DOR :(; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Stretched out along left side of rock; Coordinate Uncertainty in Meters: 27253.00000.

Lake Hurron, Ontario: 44.948417, -79.949403: : 9/16/2025: Mike Lavin: 16 Sep 2025 ; Coordinate Uncertainty in Meters: 27253.00000.

Occurrence Remarks: Occurrence Remarks: DOR; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: DOR; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: Adult female at suspected gestation site; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: Adult female at highly suspected gestation site; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: Adult male actively travelling; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: This snake was unfortunately hit by a car. We noticed it on our walk today; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: Snake in underbrush of forest. Snake rattled when we were roughly 5m away, was quite aware (watching us walk around) but not willing to move from her spot.; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: Resting on overgrown trail, rattled as second hiker walked by.; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: DOR - young male; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: large male snake; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: DOR.; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Occurrence Remarks: AOR; Coordinate Uncertainty in Meters: 27190.00000.

Bruce, Ontario: 45.090244, -81.468423: : 8/16/2025: stillsearchingforabetternatureusername: 16 Aug 2025 :

Lake Hurron, Ontario: 45.2437, -80.395616: : 10/14/2025: Alex Heffernan: 14 Oct 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Big snake resting under juniper bush. Rattled lots and moved away as soon as we saw them.; Coordinate Uncertainty in Meters: 27190.00000.

CAN.9.22.1_1, Ontario: 45.07872, -81.237402: : 7/24/2026: Kathleen Houlahan Chayer: 24 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.182763, -81.341863: : 9/2/2025: Tyler Miller: 2 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.027301, -81.235061: : 9/2/2025: Tyler Miller: 2 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Found DOR and rattle removed; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.150156, -81.575791: : 7/26/2026: cassbridge: 26 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.251998, -81.439859: : 9/3/2025: Froggy: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: DOR; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.139419, -81.31307: : 9/5/2025: Brian Popelier: 5 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: I came upon a black pickup truck intentionally slowing driving over this massasauga on the opposite side of the road :(, the truck took off before I understood what was going on.; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.220974, -80.159318: : 8/14/2025: Alex Heffernan: 14 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Snake was on driveway and rattled when approached.; Coordinate Uncertainty in Meters: 41958.00000.

GBIFID: 1890090701; Occurrence Remarks: Sunny, 23 C. Dead on road. Tail still moving.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4165619293; Occurrence Remarks: Dorcas Bay Road;; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: 3 dead in two days. Not the best trip to BPNP.; Coordinate Uncertainty in Meters: 27190.00000.

Unknown, Ontario: 45.190989, -79.960939: : 5/26/2026: stefmatis: 26 May 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.183607, -79.988106: : 5/26/2026: Aaron Rusak: 26 May 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Did not rattle; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Healthy backcountry specimen.; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.099543, -81.500161: : 5/30/2026: Matt Parsons: 30 May 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.067775, -81.478979: : 5/27/2026: Matt Parsons: 27 May 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.16611, -81.51263: : 5/26/2026: Matt Parsons: 26 May 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3903501972; Occurrence Remarks: dead on road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3902603461; Occurrence Remarks: This snake was pretty long is it possible it was a fox snake ?;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1890087187; Occurrence Remarks: Two together at edge of marl pond. One, at my feet, in photo, was silent. The second, ~ 50 cm away and unseen, rattled enthusiastically until I was 10+ m distant. Hazy, 24 C.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3903492132; Occurrence Remarks: dead on road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4137987871; Occurrence Remarks: Dead on the road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1899796553; Occurrence Remarks: Sunny, 25 C. Heard first under shrubs at edge of marl pond. Eight rattle segments.;; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.093038, -80.175106: : 6/24/2025: stefmatis: 24 Jun 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Parry Sound, Ontario: 45.158983, -79.822289: : 6/23/2025: stefmatis: 23 Jun 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Montmorency, Michigan: 45.100851, -84.010818: : 4/27/2026: lferguson352: 27 Apr 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Campground RK :( Likely a week or 10 days since).; Coordinate Uncertainty in Meters: 27190.00000.

Bruce, Ontario: 45.162073, -81.430313: : 9/17/2025: Spencer Bennett: 17 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.222186, -81.511553: : 9/17/2025: Madeline Sanagan: 17 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.246497, -81.57364: : 9/18/2025: Spencer Bennett: 18 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Bruce, Ontario: 45.105438, -81.371434: : 9/19/2025: Brian Popelier: 19 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Basking on moss bed in small wetland; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.017202, -81.591543: : 9/27/2025: Michael Butler: 27 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Muskoka, Ontario: 45.02025, -79.757728: : 9/28/2025: Erica Overbeek: 28 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: AOR moved off; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.014417, -80.101569: : 7/2/2025: agrottoli: 2 Jul 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Parry Sound, Ontario: 45.250556, -80.084334: : 5/13/2025: Dana Latour: 13 May 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.248699, -80.32622: : 7/21/2025: Rapha├½l Grellety: 21 Jul 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Unknown, Ontario: 45.157268, -79.90016: : 6/4/2026: emaitken99: 4 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.169157, -79.886053: : 7/5/2026: rileybowman: 5 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.038064, -79.879566: : 6/5/2026: Taylor Kennedy: 5 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.046693, -79.716699: : 6/8/2026: Erica Overbeek: 8 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: AOR moved off road; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.156494, -79.868437: : 6/9/2026: lauren_sideris: 9 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.020831, -81.436056: : 9/23/2025: Spencer Bennett: 23 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.200524, -81.404655: : 6/21/2026: Nathen Muckatira: 21 Jun 2026 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Got it safely to the other side of the road :); Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.161815, -81.480829: : 6/11/2026: Darrell Parsons: 11 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: dead on road; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.042365, -79.765027: : 7/12/2026: Dave Greenwood: 12 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.178591, -79.990974: : 6/7/2026: kjamieson: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Unfortunately dead. Body still moving but head was not moving and it didnt rattle at all which leads me to believe it had been recently run over when I found it.; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Baby rattlesnake; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.22746, -81.594007: : 6/29/2026: cassbridge: 29 Jun 2026 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Sunning on road. Escorted off road. Good size, did not like being disturbed.; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.067716, -81.500035: : 6/29/2026: andersono: 29 Jun 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Parry Sound, Ontario: 45.196292, -79.887542: : 9/16/2025: Sofia Vermeulen: 16 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: At least 3 young.; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 1836601338; Occurrence Remarks: Neonate in situ in SW Ontario, Canada.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3455975937; Occurrence Remarks: Roadkill. Specimen to Parks Canada for tissue preservation.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3457038719; Occurrence Remarks: Roadkill. Specimen to Parks Canada for tissue preservation.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3456824928; Occurrence Remarks: Roadkill. Specimen to Parks Canada for tissue preservation.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3455683948; Occurrence Remarks: Roadkill. Specimen to Parks Canada for tissue preservation;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3455872040; Occurrence Remarks: We were camping in a Park (September 8, 2014), and while sitting on the shore and reading a magazine, I suddenly noticed a coiled snake near the canoe; unmistakably, it was the Eastern Massasauga Rattlesnake, the only venomous snake in Ontario, after which the park is named. I immediately called Chris and he initially suspected that I had placed a rubber snake just to scare him, as the snake was motionless ù but soon it began sluggishly slithering forward, powerfully rattling its tail. Its rattle was made up of 9 rings. It was exactly the 5th time I had seen a rattlesnake in Ontario, but this one was the biggest: it was up to 1 meter long, very thick and unlike the previous rattlesnakes, it was not scared of us at all and did not try to escape as the others had always done. Instead, it kept forcefully moving forward across the clearing, then cut through the fire pit and eventually disappeared in the bush.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3760263768; Occurrence Remarks: Sunning itself on rock;; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.204599, -81.759971: : 6/29/2021: Escarpment Biosphere Conservancy: 29 Jun 2021 :

GBIFID: 3802580611; Occurrence Remarks: Moved off road alive;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3802776749; Occurrence Remarks: We had a dramatic encounter with this rattlesnake on the hike from Crane Lake to High Dump Campground, where it was sunning right on the side of the trail. I unwittingly stepped right next to it, and we got to hear what the famous rattle sounds like! Once we stopped running and our heart rates slowed a bit we got this picture from a safe distance. Everyone (including the snake) is fine, and we certainly have a new appreciation and respect for this fascinating animal. Location is approximate (no service at the time).;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3858836734; Occurrence Remarks: What a wonderful serendipitous find on a sunny morning. Took a couple quick photos and moved along. Remarkable creature.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3860590981; Occurrence Remarks: D.O.R. Removed from road to prevent duplicate obs.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3858680988; Occurrence Remarks: Healthy specimen in our driveway.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3860723028; Occurrence Remarks: Moved off road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5086930377; Occurrence Remarks: On the road, alive;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3859004650; Occurrence Remarks: Baby rattlesnake;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3860350263; Occurrence Remarks: Photographed using telephoto lens from a respectful distance.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3873805749; Occurrence Remarks: Individual dead on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3873062378; Occurrence Remarks: Neonate seen nearby;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3873084208; Occurrence Remarks: D.O.R. Removed from roadway.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3881917471; Occurrence Remarks: On the move;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3889030791; Occurrence Remarks: Injured on the road.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3888958173; Occurrence Remarks: On edge on ATV trail in closed-canopy Sugar Maple stand (with some Eastern Hemlock);; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3892361262; Occurrence Remarks: Our resident rattlesnake had babies in the last 24 hours. We have a lot of rattlesnakes in our yard right now (#proudgrandparents). First photo is mom with a baby curled on top. The other photos are babies. Not sure how many- they are spread out. She is right beside our door and in the past, she seldom rattles at us now. We are giving her space.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3902428499; Occurrence Remarks: Straight flat road, probably intentionally hit. Love people.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3903124940; Occurrence Remarks: Healthy looking mature animal.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3903396848; Occurrence Remarks: Deceased on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1880575596; Occurrence Remarks: DOR. 4325 Hwy 6. 27 C, overcast.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1880582945; Occurrence Remarks: Bruce Co., North Bruce. Tobermory. 1099 Dorcas Bay Road. Healthy adult. Gently moved from centre of road. 22 C. ORAA ID: 472557;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1880582923; Occurrence Remarks: Bruce Co., North Bruce. 1148 Dyers Bay Road. Juvenile, dead on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1883477436; Occurrence Remarks: Sunny, 20 C. 1042 Dorcas Bay Road. Inert on road, injured? Gently moved off road. Found to have died the following day.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1883480321; Occurrence Remarks: Sunny, 21 c. Rattled beside trail near creek edge. Large female(?) partially concealed in undergrowth but can be IDÆd from this photo.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1883487800; Occurrence Remarks: Dead on Lindsay Road 20 passing through treed alvar. Sunny, 22 C.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1883508556; Occurrence Remarks: Roadkill - looks like either water snake or massassauga?;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3994091952; Occurrence Remarks: Not a good photo, but we were alerted by buzzy rattle!;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4006758845; Occurrence Remarks: On return from Rainy River trip with Steve Charbonneau;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4018192020; Occurrence Remarks: Roadkill.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1890061653; Occurrence Remarks: Rattled from shaded undergrowth beside trail.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1891308932; Occurrence Remarks: Dead at side of road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4120977887; Occurrence Remarks: Captured as part of long term study.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4126879023; Occurrence Remarks: DidnÆt get a great photo for obvious reasons.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4127104621; Occurrence Remarks: Bug worm!;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4129989196; Occurrence Remarks: DOR HWY 6;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1913199250; Occurrence Remarks: Sunny, 24 C. Roadkill.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4129712597; Occurrence Remarks: A.O.R. Basking on cottage road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4129789790; Occurrence Remarks: DOR Johnsons Harbour Rd;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4138396497; Occurrence Remarks: Healthy, mature individual on dirt road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1914322986; Occurrence Remarks: Mouth deformed or something.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1914323666; Occurrence Remarks: Basking, Small. Only about a foot long.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1914323737; Occurrence Remarks: Hiding in undergrowth;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1914323682; Occurrence Remarks: Large Massasauga Thick Grey Body with dark sadle shaped blotches on back. Crossed trail. Rattled at me after nearly being stepped on. Rattle visible, not just a mimic species.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1122958904; Occurrence Remarks: 60-70cm second of two eastern massassaugas seen approximately 500m from each other, same day.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1122958903; Occurrence Remarks: 50-60cm first of two Eastern Massassauga Rattlesnakes seen within approximately 500m of each other. Carolinian forest area, near wetland and river.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4145542196; Occurrence Remarks: Lake Huron shoreline.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4145775431; Occurrence Remarks: Individual deceased likely from vehicle;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4153725535; Occurrence Remarks: juvenile;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4162246762; Occurrence Remarks: Neighbours yard - healthy looking.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4162001295; Occurrence Remarks: Duplicate of https://www.inaturalist.org/observations/172721152;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4162160224; Occurrence Remarks: DOR. Removed from roadway.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4165376256; Occurrence Remarks: Visually confirmed in field -could not take a good picture from a safe distance;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1920838380; Occurrence Remarks: Roadkill. Dorcas Bay Rd. & Pedwell Dr. Overcast, 18 C. Mature individual.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4165759163; Occurrence Remarks: Small snake, quiet rattle. Basking with a garter!;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4171598904; Occurrence Remarks: Hwy 6;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4171338275; Occurrence Remarks: Emmett Lake Road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4171918607; Occurrence Remarks: Johnsons hrbr;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4172197370; Occurrence Remarks: AOR.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4176977116; Occurrence Remarks: Juvenile massassauga rattle snake;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4177572881; Occurrence Remarks: Hwy 6;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4177548256; Occurrence Remarks: Dorcas Bay Road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4400162962; Occurrence Remarks: Found in front of the house and relocated to the woods behind the house;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4399935362; Occurrence Remarks: Moved the snake off the road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4400321189; Occurrence Remarks: Stopped vehicle and moved snake off the road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4405527236; Occurrence Remarks: Dead by a car;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4405515485; Occurrence Remarks: AOR. Escorted it across road safely.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4405200279; Occurrence Remarks: Hwy 6;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4405346503; Occurrence Remarks: In singing sands parking lot;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4067325333; Occurrence Remarks: Eastern Massasauga;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4420681127; Occurrence Remarks: Cyprus Lake Road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4421125192; Occurrence Remarks: Bruce County, ON Preying on Northern Watersnake.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4421118428; Occurrence Remarks: Found dead on a trail.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4421229991; Occurrence Remarks: Young, about 12 inches long;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4430702403; Occurrence Remarks: Basking on rock barren at edge of common juniper patch;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1990475618; Occurrence Remarks: roadkill.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2012972857; Occurrence Remarks: Bruce Co., Municipality of North Bruce Peninsula, Bruce Peninsula National Park. Observed this mature (f?) snake basking at edge of marl pond. ORAA: 472681.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4867708930; Occurrence Remarks: Calcareous fen edge;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4868006146; Occurrence Remarks: 6 rattles counted. Did not rattle when approached, stayed motionless, and then continued into woods.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4875346638; Occurrence Remarks: Basking on grassy knoll on edge of wetland;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4875127558; Occurrence Remarks: Poor photo, rattle is visible;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4891796629; Occurrence Remarks: Basking in small wetland area in middle of coniferous forest;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4891997141; Occurrence Remarks: On atv trail;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4909282392; Occurrence Remarks: Heard the rattle, was on the Bruce trail;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4908786782; Occurrence Remarks: It rattled several times and moved into the ditch.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4908472046; Occurrence Remarks: See in photo 2 that there seems to be a slug stuck under the bottom of it mouth.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4910683058; Occurrence Remarks: AOR;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4910876039; Occurrence Remarks: Basking on small log in forest opening;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4919256725; Occurrence Remarks: On trail in mixed forest;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4919698625; Occurrence Remarks: per P Lametti;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4919688950; Occurrence Remarks: Male. Rattles had been stolen.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4921707255; Occurrence Remarks: Tail sounded like a buzz at first, but within a minute the snake curled and the rattle was louder. Slithered away quickly into the forest.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4921890983; Occurrence Remarks: Basking in alvar;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4922020658; Occurrence Remarks: Dor;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4921847503; Occurrence Remarks: Dor;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4923995710; Occurrence Remarks: Dor;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4923789838; Occurrence Remarks: Massassaugu Rattler;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4924173429; Occurrence Remarks: DOR. Already added to projects by other finder;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4923820722; Occurrence Remarks: DOR. Already added to projects by other finder;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4923815011; Occurrence Remarks: DOR. Already added to projects by other finder;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4925807357; Occurrence Remarks: On gravel road to Wasauksing marina;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4946236752; Occurrence Remarks: Sunning on the road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4946639624; Occurrence Remarks: IOR;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4946231229; Occurrence Remarks: On road. Moved to shoulder. Moving very slowly.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4946413624; Occurrence Remarks: Moved off road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 4976435998; Occurrence Remarks: Adult massasauga dead on the road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 5007991905; Occurrence Remarks: Crotalus spec.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5141045569; Occurrence Remarks: Sunny clearing in backcountry woodland. 10░ C. Early date.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2283046582; Occurrence Remarks: Road mortality.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5167700707; Occurrence Remarks: Deceased on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5188341814; Occurrence Remarks: Pair entwined in clearing.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5199063991; Occurrence Remarks: same snake as in previous upload (confirmed via microchip), discovered 1 week later. suspected to have been killed by a fisher;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2294531880; Occurrence Remarks: Heard the rattle when it first went under the bush. Saw the rattle on the end of the tail as it disappeared. Snake was approximately 2 feet long.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2294616952; Occurrence Remarks: Toad mortality.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5215995227; Occurrence Remarks: gestating female likely;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2311312878; Occurrence Remarks: Sunning itself on road. We carefully pulled it off to the side with a large branch. It was not appreciative!;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5217315380; Occurrence Remarks: Moved off road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5231091546; Occurrence Remarks: Saw the individual and it disappeared under a table rock before we could get a picture, you can hear the rattle buzzing in the audio recording;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2311407662; Occurrence Remarks: It was on the æTwin Points Lookout TrailÆ in Killbear Provincial Park.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2311427267; Occurrence Remarks: Clear, 23 C. Beside semi-shaded forest stream.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5231378442; Occurrence Remarks: D.O.R.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2331889443; Occurrence Remarks: Moved off the road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 5238396815; Occurrence Remarks: Apologies for the terrible photos.can see body markings in centre left of first photo and blurry behind grass in the centre of the second. Heard rattle.;; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.028412, -81.566711: : 8/4/2019: Carl-Adam Wegenschimmel: 4 Aug 2019 :
GBIFID: 2331949312; Occurrence Remarks: Dead on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2331949219; Occurrence Remarks: Massasauga rattlesnake on the rocks on the edge of the lake;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2350415774; Occurrence Remarks: Overcast, 22 C. Thuja dominated woodlot near Lake Huron.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2423021519; Occurrence Remarks: Plusieurs Massaugas ont ΘtΘ aprecu par lauteur dans le mΩme endroit.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2423123684; Occurrence Remarks: DOR. Clear, 19 C.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2423165799; Occurrence Remarks: Froze...Did not move or rattle.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2460139142; Occurrence Remarks: 1 medium - large individual beside trail;; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: #857E; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: #860E; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2597885545; Occurrence Remarks: Found in open canopy sugar maple aspen rocky forest sunning itself. Likely just emerged from winter.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2802675100; Occurrence Remarks: Clear, 21 C.Sunning on ATV trail.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2814306672; Occurrence Remarks: Heading south on the main trail (Bruce trail) just after the fork for the Alan Fowler side trail and Reeds dump Side trail (overnight rest area). The first member of our group walked within a foot of it, causing it to rattle and splitting up our group. We waited to see if it would leave, allowing us to continue on the trail, it did not, in fact it turned towards us so we had to go off trail to avoid it.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2813974329; Occurrence Remarks: DOR near wetland.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2814304307; Occurrence Remarks: dig;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2818581785; Occurrence Remarks: Juvenile Massassuaga Rattlesnake;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2823342826; Occurrence Remarks: DOR but I donÆt think a car, it had a big slash in its side and wasnÆt at all squished.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2826439498; Occurrence Remarks: Found dead on road, likely vehicular strike to the head.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2826292560; Occurrence Remarks: Dead on road, looked as tho rattle and been cut off;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2851081579; Occurrence Remarks: Road mortality;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2850730899; Occurrence Remarks: Two individuals;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2851292087; Occurrence Remarks: Along bush edge near shoreline where docks for hiking trail begins. Approx time: 1:00pm Video available.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2851123197; Occurrence Remarks: Unfortunately this individual was dead - likely hit by motor vehicle based on blood on road adjacent to snake.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2851228662; Occurrence Remarks: Road mortality;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2850923660; Occurrence Remarks: Healthy on road, shoo-ed on to the shoulder.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2856476676; Occurrence Remarks: Mating. Interestingly, female gave birth within 2 days previously;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2856547023; Occurrence Remarks: Dead on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2856583403; Occurrence Remarks: This is not a great picture but I have a fantastic video of this awesome Madsasauga Rattlesnake, who we almost stepped on, on the Bruce Trail. I got him rattling away at us In said video.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2864782627; Occurrence Remarks: Was dead, the middle body crushed by someone, probably by a rock. A stick was placed under it.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2864850542; Occurrence Remarks: Recent road kill.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2864727004; Occurrence Remarks: Seen sunning on the road adjacent to the Bruce Trail. When I approached it to get it off the road, it reacted as seen here, then left before any traffic came.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2868135649; Occurrence Remarks: This snake, which we think is a Massasauga Rattler, crossed the foot path as we were south bound on the Bruce Trail south of Smokey Head. We were one hour north of our lunch stop at Reeds Dump Side Trail while in the Smokey Head White Bluff Provincial Nature Reserve. Sorry the picture isnt that great. We were startled. Zoom in for detail.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2874002567; Occurrence Remarks: A very small one, young of the year (see photo 2);; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2883206609; Occurrence Remarks: Dead on road.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 2988429887; Occurrence Remarks: Sistrurus catenatus (Massasauga). Photographed at 12 Mile Bay Road, Muskoka, Ontario on 19 July 1997.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3307122125; Occurrence Remarks: Freshly dead on road was absent when I drove by an hour earlier. Large adult.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3314495115; Occurrence Remarks: road mortality;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3314556480; Occurrence Remarks: Found at the start of Cottrill Lakeside Loop hike - hike here: Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1677310969; Occurrence Remarks: Cabot Head, Bruce Peninsula, ON, Canada;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3321166639; Occurrence Remarks: Rattle observed - often seen on property - this was a big one;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3321123211; Occurrence Remarks: DOR.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3321285447; Occurrence Remarks: Recently run over and dying. Sad.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3321002584; Occurrence Remarks: 2 rattlesnakes sighted in close proximity, about 100 meters apart;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3325830695; Occurrence Remarks: Edge of calcareous fen. Thick gestating female?;; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.016871, -81.565684: : 7/2/2021: Carl-Adam Wegenschimmel: 2 Jul 2021 :

GBIFID: 3325828951; Occurrence Remarks: Road mortality;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3325473945; Occurrence Remarks: DOA;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3325520017; Occurrence Remarks: Basking with 1 other and 2 Nerodia sipedon.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3325577984; Occurrence Remarks: Basking with 1 other and 2 Nerodia sipedon.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3325551031; Occurrence Remarks: Young snake, in Fen;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3325682040; Occurrence Remarks: 6 adults in close proximity (within 1m of each other), presumably mating.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3325707098; Occurrence Remarks: Healthy animal in backcountry.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3327770713; Occurrence Remarks: Location approximate;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3327757743; Occurrence Remarks: Basking on rocks near devils monument;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3327772994; Occurrence Remarks: partially hidden; near top of photo;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3327759109; Occurrence Remarks: Just after sunset, on the warm front steps to the cottage. I was taking my mothers dog out to do her business when we heard a buzzing. I suspected it was a cicada and it was mainly my curiosity and the dogs reluctance that stopped us from walking within centimeters of the snake. Were all concerned about its presence.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3327787257; Occurrence Remarks: Crossing road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3330725658; Occurrence Remarks: Individual dead on road;; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.108386, -80.10789: : 7/9/2021: Claudia Bate Gonzalez: 9 Jul 2021 :
GBIFID: 3330410207; Occurrence Remarks: Campsite 308;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3333437433; Occurrence Remarks: Found dead at side of Lindsay Road 20 early in the morning. About 2ft long;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3333456563; Occurrence Remarks: Moving through dune;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3335109179; Occurrence Remarks: Helped him cross the road safely ????;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3337484219; Occurrence Remarks: 3 adults seen, 2 in very close proximity and third about 30m away. The one with red paint on is rattle appeared very pregnant. The one with blue had at least 10 young with it and the third adult also had at least 6 young with it, itÆs rattle didnÆt appear to have any paint on it.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4910747368; Occurrence Remarks: Could have been a juvenile. Was not aggressive although it rattled quite a few times at us (it was very close to our tent so we wanted to stick around and make sure it moved on). It eventually slithered off into the woods after remaining frozen watching us for a few minutes. Amazing encounter!;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3337973988; Occurrence Remarks: Basking in the sun, including a group of presumably recently born massasaugas. Original raw file of the young massassaugas is available.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 1802677695; Occurrence Remarks: 1, frame clipped from video;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3337794340; Occurrence Remarks: Mouth injury?;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3338053694; Occurrence Remarks: No rattle.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3337958580; Occurrence Remarks: Alvar.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3343747128; Occurrence Remarks: Sunning in forested area on cottage property. Small snake, likely 30 cm long;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3343732647; Occurrence Remarks: Snake was directly on the trail, and rattled at me. It was the sound of the rattler that made me notice it - it was about 8 feet away from me. I ended up walking around it as it did not move off the trail;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3343917815; Occurrence Remarks: dead on road;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3355145252; Occurrence Remarks: maybe it had eaten not too long ago.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3355348237; Occurrence Remarks: not sure if head is lower right, it looked like an eye but it could be a leaf;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3355309279; Occurrence Remarks: not sure if head was visible but girth was large and had at least 8 tips of rattle;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3355794395; Occurrence Remarks: D.OR. Removed from roadway to prevent duplicate observations.;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3384704944; Occurrence Remarks: Found dead by the side of the trail. Head looked crushed. May have also been some damage to the tail end.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3384073088; Occurrence Remarks: Saw the snake on the Bruce Trail, a few hundred meters East of where the Richardson site trail joins the main trail. In a wooded area (mixed hardwood and softwood).;; Coordinate Uncertainty in Meters: 27222.00000.

GBIFID: 3391385884; Occurrence Remarks: Third adult out of three adults. The this and one other adult were guarding some newly hatched Massasaugas. We saw overall about twenty of them that day in a short period of time!;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391378842; Occurrence Remarks: First batch of babies we saw that day (there were ten in the photo). Being guarded by this adult.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391300827; Occurrence Remarks: Second batch of newly born ones. Being guarded by this adult-https://www.inaturalist.org/observations/97751737;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391703816; Occurrence Remarks: This was a new adult for us.;; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Alive on road, juvenile; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.22049, -81.439321: : 8/14/2025: kyraonthego: 14 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Bruce, Ontario: 45.157055, -81.441643: : 9/17/2025: Spencer Bennett: 17 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Muskoka, Ontario: 45.047093, -79.935284: : 8/27/2025: rileybowman: 27 Aug 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.04133, -79.937636: : 7/7/2026: Nathanial Merker-Myers: 7 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: About 3 feet long Lions head area; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.13753, -81.532741: : 9/1/2025: destephenson: 1 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Parry Sound, Ontario: 45.19758, -79.675128: : 8/24/2025: balabeek22: 24 Aug 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.091627, -81.473934: : 8/24/2025: angelinadavidson: 24 Aug 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.167109, -79.984741: : 9/3/2025: gordsheard: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.232893, -80.307958: : 8/13/2025: Alex Heffernan: 13 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Just gave birth; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Young snake was roughly 7 inches long, and had 1-2 segments on rattle. The snake flattened out its body to look intimidating, donΓÇÖt be fooled on the photos, the snake was likely young of the year!; Coordinate Uncertainty in Meters: 27222.00000.

Bruce, Ontario: 45.25833, -81.698019: : 9/3/2025: Darrell Parsons: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Road kill; Coordinate Uncertainty in Meters: 27190.00000.

Parry Sound, Ontario: 45.179617, -79.802049: : 9/9/2025: jokohut: 9 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Muskoka, Ontario: 45.055101, -79.935742: : 9/9/2025: jokohut: 9 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Parry Sound, Ontario: 45.179851, -79.841876: : 9/9/2025: jokohut: 9 Sep 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Small and feisty; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.212089, -80.225717: : 9/11/2025: jmahood: 11 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Unknown, Ontario: 45.154699, -79.916542: : 7/6/2026: clairemlc: 6 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Muskoka, Ontario: 45.041337, -79.891445: : 7/7/2025: agrottoli: 7 Jul 2025 ; Coordinate Uncertainty in Meters: 27222.00000.

Occurrence Remarks: Fatal injury on road, still moving a little; Coordinate Uncertainty in Meters: 27222.00000.

Unknown, Ontario: 45.138827, -81.521029: : 7/21/2026: cassbridge: 21 Jul 2026 ; Coordinate Uncertainty in Meters: 27222.00000.

Lake Hurron, Ontario: 45.212946, -80.264492: : 9/15/2025: Alex Heffernan: 15 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: AOR Eastern Massasauga. I moved it off the road to safety.; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Occurrence Remarks: adult gestating female, incredibly long rattle (16 segments); Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: Near site 31, Massassauga Provincial Park; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: Sunning on trail, at site 29 Massassauga Provincial Park.; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: Dead beside road, but the remains look more like predation.; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: Seen on ATV trail near Ardbeg, slightly farther away from Georgian Bay than most habitat maps suggest. Pin should have accurate coordinates.; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: Occurrence Remarks: DOR Eastern Massasauga.; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Occurrence Remarks: Fresh DOR Eastern Massasauga.; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Occurrence Remarks: DOR - male; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: Duplicate observation of individual https://inaturalist.ca/observations/304964056; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: Occurrence Remarks: A mating pair; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Occurrence Remarks: juvenile, DOR; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Occurrence Remarks: AOR, moved off the road; Coordinate Uncertainty in Meters: 27190.00000.

Unknown, Ontario: 45.443471, -80.005955: : 7/27/2026: Chloe Wilson: 27 Jul 2026 ; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: run over by car before, i had to watch it die; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: IOR; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: AOR, large male escorted off road; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.34599, -81.695873: : 9/3/2025: Darrell Parsons: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Parry Sound, Ontario: 45.562616, -80.036281: : 9/13/2025: runwildwithtiff: 13 Sep 2025 ; Coordinate Uncertainty in Meters: 27158.00000.

Manitoulin, Ontario: 45.995058, -80.628908: : 9/9/2025: sheldonmcgregor: 9 Sep 2025 ; Coordinate Uncertainty in Meters: 27095.00000.

Manitoulin, Ontario: 46.106813, -81.44181: : 7/29/2023: Kathleen Houlahan Chayer: 29 Jul 2023 :

GBIFID: 3888823058; Occurrence Remarks: Georgian Bay near Bayfield, ON;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 3912221805; Occurrence Remarks: Found this one by almost stepping on it. Just trying to stay warm on a cool day.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3873331168; Occurrence Remarks: Found this freshly road killed Massasauga rattlesnake on Skerryvore Community Road near the conservation reserve. It was hit at the centre line.;; Coordinate Uncertainty in Meters: 27158.00000.

Unknown, Ontario: 45.651702, -80.464742: : 5/27/2026: kyliemaceachern: 27 May 2026 ; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: AOR Neonate Eastern Massasauga. Relocated off the road in the direction it was headed.; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Recent DOR Eastern Massasauga neonate.; Coordinate Uncertainty in Meters: 27158.00000.

Unknown, Ontario: 45.488705, -80.431058: : 5/25/2026: kyliemaceachern: 25 May 2026 ; Coordinate Uncertainty in Meters: 27158.00000.

Unknown, Ontario: 45.950754, -80.734236: : 5/26/2026: Lucas Foerster: 26 May 2026 ; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 3947327629; Occurrence Remarks: Very small Massassauga rattlesnake;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3912294167; Occurrence Remarks: A living Massasauga rattlesnake on Skerryvore Community Road. Nearby wetland. 19 C, 95% humidity.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3912419237; Occurrence Remarks: Road killed sub adult Massasauga rattlesnake on Skerryvore Community Road. Nearby wetland. 21 C, 84% humidity SW wind 15kph.;; Coordinate Uncertainty in Meters: 27158.00000.

Lake Hurron, Ontario: 45.259655, -80.321067: : 6/30/2025: Alex Heffernan: 30 Jun 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Parry Sound, Ontario: 45.357215, -80.121716: : 8/26/2025: dpitawanakwat: 26 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.267891, -81.488344: : 9/16/2025: Spencer Bennett: 16 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.289218, -81.551921: : 9/16/2025: Spencer Bennett: 16 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.338388, -80.273073: : 9/22/2025: jmahood: 22 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: AOR Massasauga neonate on the move. Safely taken off the road.; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Basking on ridge in cedar forest; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Michigan: 45.732518, -84.248517: : 10/4/2019: Brandie Dunn: 4 Oct 2019 ; Coordinate Uncertainty in Meters: 27126.00000.

Lake Hurron, Ontario: 45.845857, -80.881148: : 7/23/2025: Alexandra Bunge: 23 Jul 2025 ; Coordinate Uncertainty in Meters: 27095.00000.

Cheboygan, Michigan: 45.647889, -84.451782: : 7/8/2026: suziebnj: 8 Jul 2026 ; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: Rattled at us even from a good few meters away.; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Very small rattlesnake only 1 segment on tail. Always had head below grass so it never noticed me.; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Dead on road unfortunately!; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Michigan: 45.759968, -84.520109: : 6/26/2024: Joyanne Mittig: 26 Jun 2024 ; Coordinate Uncertainty in Meters: 27126.00000.

Unknown, Ontario: 45.465824, -80.120775: : 6/13/2026: Taylor Kennedy: 13 Jun 2026 ; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: In fen.; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: A friend just sent me this video from Mackinaw Island--it sure looks like an EMR! She has more documentation.; Coordinate Uncertainty in Meters: 27095.00000.

Occurrence Remarks: Hidden little guy who was not happy to see me; Coordinate Uncertainty in Meters: 27126.00000.

Unknown, Ontario: 45.580365, -80.37535: : 6/30/2026: Estelle Scott: 30 Jun 2026 ; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Eastern Massasauga seeing crossing roadway during a nighttime bike ride. Safely removed in the direction it was heading.; Coordinate Uncertainty in Meters: 27158.00000.

Cheboygan, Michigan: 45.66411, -84.514932: : 6/16/2024: Benzie Conservation District: 16 Jun 2024 ; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: #853E; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3456151672; Occurrence Remarks: While camping in a Park on August 14, 2012, I was looking for a rock to place my fishing rock on; I spotted one that was almost in the water, lifted itùand suddenly saw something having a very peculiar shape and colour. It took me a second or two to realize it was a very small, coiled rattlesnakeùit was only the third time in my life I saw one in the wild. The snake was not very eager to move; it was rattling, or rather moving the tip of his tail where the rattle was located, but it did not produce any sound. Most likely it was such a young snake that it had not shed its skin enough times to develop the rattle. Eventually it started moving and I took several photos. Later I placed it into a coffee cup and moved it away from our campsite. While in the coffee cub, its rattle was touching the inside of the cup and we could hear rattling/vibration, caused by its tail rattling against the walls of the cup. Interestingly, venomous baby snakes are more dangerous to adult snakes, as the latter, when biting, can control the amount of injected venom or do not inject any venom at all, whereas small snakes have not developed such ability yet and when they do bite, they may inject all the venom they have into their prey.;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 1838348217; Occurrence Remarks: One of 8 neonates found.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3773458608; Occurrence Remarks: Beauty of a snake approximately 30-36 inches;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3859686244; Occurrence Remarks: Went by the train tracks for a pee. She did not warn me at all. I squatted and it was not untill i went to stand that i heard very loud distinct rattling for the first time in my life. Turned around and she was coiled up about a foot max behind me.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 3858595761; Occurrence Remarks: Massasauga rattlesnake digesting his pray on the side of the road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3859157778; Occurrence Remarks: Gestating female;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3860526157; Occurrence Remarks: Dead by the side of the road, sadly, but not typical of a fatal interaction with a car. Not apparent what happened to it.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3873829149; Occurrence Remarks: At edge of rock barren/white pine stand; moving under common juniper. Six rattles;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3873454909; Occurrence Remarks: Ziggy spotted this beauty as he was about to reach for some ripe berries... Image taken while on our cross-country trip in summer 2014.;; Coordinate Uncertainty in Meters: 27063.00000.

GBIFID: 3873856202; Occurrence Remarks: Found this roadkilled Massasauga rattlesnake on Skerryvore Community Road with the community along with a live one that was escorted off the road safely.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3873924643; Occurrence Remarks: Found this road killed Massasauga rattlesnake on the centre line of Shebeshekong Road.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3873268349; Occurrence Remarks: Very recent roadkill. One other specimen seen approx 1km west along road. It moved faster across and into the woods.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3873994051; Occurrence Remarks: Submitting this observation on behalf of Frank George who made the observation and took the photograph. I was contacted on July 18 due to my proximity to the location and confirmed it was a Massasauga.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 3888936454; Occurrence Remarks: Georgian Bay near Bayfield, ON;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 3892463074; Occurrence Remarks: Found under a flat rock on a trail. Was approximately 2.5 ft long.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 1850931836; Occurrence Remarks: Rattlesnake was observed at 12:56 pm. The snake was fairly large with approximately 4 segments on the rattle. The snake was basking in a slightly open area in the forest and retreated when observers approached.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3902963339; Occurrence Remarks: At 6:34 pm Wednesday August 24, 2022 I found 2 Massasauga rattlesnake adults and evidence of neonates with their shed skins.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3903070642; Occurrence Remarks: Massasauga rattlesnake roadkill along Skerryvore Community Road. Clearly its head was hit.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3903462778; Occurrence Remarks: Roadkilled neonate Massasauga rattlesnake on Skerryvore Community Road.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3903526638; Occurrence Remarks: DSC_0762, DSC_0731;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3912357202; Occurrence Remarks: Road killed young adult Massassauga rattlesnake on Skerryvore Community Road. Nearby wetland. 19 C, 95% humidity. Very recently hit as the tail was still moving.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3912270343; Occurrence Remarks: Road killed neonate Massasauga rattlesnake on Skerryvore Community Road. Found on a crest on the road. 21 C, SW wind 15kph.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3923664241; Occurrence Remarks: deceased on the road.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3925124204; Occurrence Remarks: DOR adult massasauga. Sad to see;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4015018008; Occurrence Remarks: There were two batches!;; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.316449, -81.534325: : 8/4/2018: Carl-Adam Wegenschimmel: 4 Aug 2018 :

GBIFID: 4091691557; Occurrence Remarks: Killbear Provincial Park.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4121398950; Occurrence Remarks: Massasauga Rattlesnake observed crossing Skerryvore community Road Mid-day, 19ÆC Unharmed, not harassed (he/she may feel otherwise) except to ensure it safely crossed the road and disappeared into the shrubbery;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4145358515; Occurrence Remarks: Size was about 4-5 inch diameter. Did not hiss or rattle, but did flatten and twitch its head. Found about 20ft from water, at 8:30pm. I think this is an eastern massasauga;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 4133676200; Occurrence Remarks: Alive on road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4138208280; Occurrence Remarks: Found this Massasauga rattlesnake basking on some gneiss bedrock. It was disturbed by my presence and retreated under a rock.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4138346332; Occurrence Remarks: Massasauga rattlesnake found on the road at night. I moved it safely off the road in the direction it was heading.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4137571194; Occurrence Remarks: Massasauga rattlesnake in habitat on a cloudy warm and humid day.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4137780960; Occurrence Remarks: Juvenile. Stopped walking to answer phone, looked down and it was within inches of my feet.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4137951811; Occurrence Remarks: Hunting on very warm summer night. Photo is terrible but ID is certain.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4145185971; Occurrence Remarks: Fleeting glimpse. Alerted to rattling from under the rock I stepped on.;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 4145347897; Occurrence Remarks: OBBA-3 French River Square Bash (June 8-15, 2023) French River Provincial Park;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 4153890277; Occurrence Remarks: Massasauga rattlesnake with her shed skin, found under a rock.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4162033141; Occurrence Remarks: Massasauga Rattlesnake taking shelter from the hot afternoon sunshine.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4162358648; Occurrence Remarks: Gravid female Massasauga Rattlesnake basking in hazy sunshine. 20 degrees C.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4162024766; Occurrence Remarks: DOR. This is the worst spot for Massasauga road mortality, in my opinion.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4162099111; Occurrence Remarks: Massasauga rattlesnake at edge and of a road. I encouraged it off the road. 24 degrees C. Mostly cloudy.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4165771583; Occurrence Remarks: Rattled and then crossed the rocks where we were walking. Was heading to the Western side of Little McCoy island. Was a very large specimen.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4165735811; Occurrence Remarks: Its dead ??;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4165683117; Occurrence Remarks: Philip Edward Island, Big Rock Point;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 4171468577; Occurrence Remarks: Emmett Lake Road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4171562688; Occurrence Remarks: Emmett Lake Road;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4171722856; Occurrence Remarks: Massasauga Rattlesnake found on road at night. I made sure he safely got across. Warm very humid night.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4171721430; Occurrence Remarks: DOR Massasauga Rattlesnake on roadway. So sad! Cloudy, light rain, 25 Degrees Celsius, very humid.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4171184299; Occurrence Remarks: DOR sub adult Massasauga Rattlesnake on edge of roadway. Very sad!;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4172156283; Occurrence Remarks: DOR on the Massasauaga meat grinder - highway 6;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4172047652; Occurrence Remarks: Eastern massasauga rattlesnake observed crossing cottage lot on eastern shore of Georgian Bay Unharmed;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4177039908; Occurrence Remarks: AOR young Massasauga Rattlesnake.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4177243167; Occurrence Remarks: I came across a resident in Skerryvore that was relocating a Massasauga Rattlesnake he found on his property. He said it was within a kilometre from where he found it. It was released in a wooded area.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4400014859; Occurrence Remarks: AOR Massasauga rattlesnake. Gently escorted him off into forest.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4405045546; Occurrence Remarks: Female snake and 12 neonates!!! The female has been observed at this site repeatedly over the last month.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4405434065; Occurrence Remarks: Cameron Lake Rd;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4405610364; Occurrence Remarks: Hit by car.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4407280072; Occurrence Remarks: AOR Massasauga in the late afternoon. I made sure it got off the road safely.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4407422386; Occurrence Remarks: found dead on the side of the road.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 4421043050; Occurrence Remarks: Female;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4421004150; Occurrence Remarks: Juvenile basking on laneway.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4424163964; Occurrence Remarks: DOR Neonate Massasauga rattlesnake at edge of road. Sunny warm day 21 degrees C.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4607593123; Occurrence Remarks: Heard under boulder as we hiked through area. Stayed nicely hidden away.;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 891127438; Occurrence Remarks: In damp rocky terrain, near shoreline of Bruce Peninsula. Cold, windy day.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4872364053; Occurrence Remarks: 30000 Islands, Parry Sound, Georgian Bay, Parry Sound District, ON, Canada.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4875446632; Occurrence Remarks: Escorted this Massasauga Rattlesnake off the road to safety. Sunny, breezy day 17 degrees C.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4875330641; Occurrence Remarks: DOR Massasauga rattlesnake.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4875374799; Occurrence Remarks: DOR Massasauga rattlesnake.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4891876886; Occurrence Remarks: Freshly DOR female Massasauga rattlesnake. So sad!;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4892056685; Occurrence Remarks: Juvenile AOR;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4904103093; Occurrence Remarks: In a blueberry bush;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4908296192; Occurrence Remarks: Large AOR Massasauga at dusk. I made sure it got off safely. It was 22 degrees C with light showers.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4908639927; Occurrence Remarks: Juvenile AOR Massasauga found and escorted off safely. 22 degrees C light showers.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4909142614; Occurrence Remarks: Massasauga rattlesnake sheltering from midday sun under a rock.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4908925625; Occurrence Remarks: Heard the rattle!;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4908494743; Occurrence Remarks: So sad.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4909041894; Occurrence Remarks: Roadkill, probably recent. ~1ft long boot for size reference in last photo;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4908511155; Occurrence Remarks: 1 Year old Massasauga Rattlesnake out after the rain on a humid cloudy day.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4908069133; Occurrence Remarks: DOR Massasauga Rattlesnake.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4910857732; Occurrence Remarks: Breeding pair;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4919174597; Occurrence Remarks: Basking in open area of mixed forest;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4919411704; Occurrence Remarks: Found by Darby White-York;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 4919535992; Occurrence Remarks: Random sighting of 1 snake travelling through cedar forest.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4921431296; Occurrence Remarks: Found this AOR year old juvenile Massasauga Rattlesnake on a night bicycle ride, appears to have had a recent meal. I moved from the road to the forest edge.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4921548976; Occurrence Remarks: Relocated to another area of the park by trained park rangers;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 4921850399; Occurrence Remarks: reported to killbear park staff;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4921906022; Occurrence Remarks: Snake was hunting in woodland behind camp site (609) at night. Weather was very warm during the day +30c night 21c;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4921837217; Occurrence Remarks: This is the 2nd snake we saw on campsite (609);; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4921492167; Occurrence Remarks: This is the third EMR we found of this island/campsite (609) hunting at night;; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.926046, -81.575391: : 8/4/2024: Kathleen Houlahan Chayer: 4 Aug 2024 :
GBIFID: 4921719603; Occurrence Remarks: Posted to a Facebook group. Adding to record presence.;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 4923713168; Occurrence Remarks: AOR Massasauga found on a night bike ride. Escorted off the road to safety.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4925969335; Occurrence Remarks: Baby massasauga basking, sheltered by the rock.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4937169466; Occurrence Remarks: Found along Horse Lake trail in Bruce Peninsula National Park;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4936970235; Occurrence Remarks: Any thoughts on this interesting colour pattern?;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4937230300; Occurrence Remarks: Moved off the road;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4946634675; Occurrence Remarks: Made it safely across the road;; Coordinate Uncertainty in Meters: 27063.00000.

GBIFID: 4946567826; Occurrence Remarks: Didnt get tail in image, had at least 5 rattles;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4952809608; Occurrence Remarks: Neonate Massasauga basking on a mostly cloudy day.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4952528439; Occurrence Remarks: DOR juvenile Massassauga.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 5007448458; Occurrence Remarks: Found basking in a lichen patch, beside a wild grove of blooming orchids. Observed repeatedly at same site over following days. Very well camouflaged, made a lazy half-rattle to curtail my unwitting approach on a separate occasion.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 4937102601; Occurrence Remarks: 1 hit on road & dying. 2nd dessicated skin likely likely same species. Next vehicle past killed dying snake.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 5153163901; Occurrence Remarks: Last years newborn;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 5167068200; Occurrence Remarks: The snake made a rattle type noise. trying to decide between a massassauga rattlesnake and an eastern fox snake is my best guess. its close to my house so Id like to know if its the viper for safety reasons;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 5187559246; Occurrence Remarks: AOR Massassauga safely escorted off roadway. 18 degrees C.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 5216031251; Occurrence Remarks: On Gibraltar Island;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 2294676941; Occurrence Remarks: Bustard Islands, Georgian Bay, ON;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 5231723042; Occurrence Remarks: Sorry but this is a screen capture from a videoà The tail was rattling quite a bit, but weÆre trying to determine if itÆs a fox snake or a rattler;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 5237589563; Occurrence Remarks: Adult male;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 5238383580; Occurrence Remarks: Recent DOR sub adult Massasauga.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 5237728713; Occurrence Remarks: Fresh DOR Massassauga. Apparently intentionally run over by 2 closely following cars. Found during a night bicycle survey.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2331899192; Occurrence Remarks: Dead on road, juvenile;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2331946924; Occurrence Remarks: DOR, large adult, female, approximately 70 cm svl, not gravid or post partum so this was her year off to recoup resources;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2331968679; Occurrence Remarks: Saw it multiple times. Gave us a good warning.;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 2350384246; Occurrence Remarks: Two massasaugas possibly mating, as they were coiled together;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2350395984; Occurrence Remarks: Hard to tell if it was run over or deliberately killed as the rattle seemed to be either cut off or missing. This looks like a snake my dad helped cross this section of road about a month ago.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 4936854206; Occurrence Remarks: Neonate;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 2397699672; Occurrence Remarks: Adult Massassauga;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2422938201; Occurrence Remarks: Juvenile, dead on rural road.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2422950747; Occurrence Remarks: Under 10cm, a juvenile. Basking after a meal. Looks fat and slow to respond.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2423082285; Occurrence Remarks: Juvenile, basking after feed. Snake was docile. No rattle development yet.;; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.32, -81.599715: : 6/28/2004: Serguei Ponomarenko: 28 Jun 2004 :

GBIFID: 2429537093; Occurrence Remarks: I observed what I believe to be a Massassauga Rattlesnake sunning itself on the rugged path into the boatlaunch area of Bolger Lake, coming in from Ardbeg Ontario side.;; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: #862E photo 1 shows head markings best photo 2 shows rattle best; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2611330334; Occurrence Remarks: Found 6, 5 adults and one juvenile. All at hibernation site just come out of hummocks;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 2641493794; Occurrence Remarks: Found while repairing fence.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2641525916; Occurrence Remarks: Clear, 22░C. Healthy, mature specimen on trail.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2641555423; Occurrence Remarks: Spotted on private driveway into 13 Janet Lane, Carling, Ontario. Adjacent wetland to the east is designated Provincially Significant Wetland.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2814412626; Occurrence Remarks: Killbear Provincial Park;; Coordinate Uncertainty in Meters: 247483.00000.

GBIFID: 2818827585; Occurrence Remarks: Found along trail system. Keeping exact location off the observation to protect this threatened species.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2823276025; Occurrence Remarks: record for individual on left; 2 females at same gestation site (follow up site visits by RW), do not see it every year so always very cool when it happens;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2823245992; Occurrence Remarks: record for individual on right; 2 females at same gestation site (follow up site visits by RW), do not see it every year so always very cool when it happens;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 1453526391; Occurrence Remarks: Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Reptilia Order: Squamata Suborder: Serpentes Family: Viperidae Subfamily: Crotalinae Genus: Sistrurus Species: S. catenatus;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2826274247; Occurrence Remarks: Encountered on portage trail. Rattled and positioned head to strike; we backed off and waited for it to leave trail but encountered it again a few meters further. It rattled again and then struck at a fallen tree branch that was depressed towards it when I stepped on the far end;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 2826407205; Occurrence Remarks: Encountered on same portage trail as July 24 sighting but roughly 1 km away from the exact spot. It rattled but did not move and was a safe enough distance from our path.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 2826415295; Occurrence Remarks: On our front porch;; Coordinate Uncertainty in Meters: 27063.00000.

GBIFID: 2826256317; Occurrence Remarks: Adult male, approx 60 SVL, ON the move, start of the mating season for 2020;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2826348145; Occurrence Remarks: Dead on road, adult, flattened;; Coordinate Uncertainty in Meters: 27158.00000.

Lake Hurron, Ontario: 45.716022, -80.688188: : 8/5/2020: pascalandrevendittoli: 5 Aug 2020 :

GBIFID: 2851151056; Occurrence Remarks: Cycling and came across the snake on Skerryvore Community Road. Noticed the snake was injured. DidnÆt look too bad, but the snake was not moving well. Moved it to the side of the road and saw how much it was damaged on the underside. Large 4-5 inch gash open right into the snake. Road construction was taking place all along the road with large culverts being replaced. Weather was hot and sunny. 25C.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2851278463; Occurrence Remarks: Found road injured and dispatched. Given to park staff. Teal marker on rattle.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 2851032178; Occurrence Remarks: Yes!!! Found one!;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 2856767196; Occurrence Remarks: Hit on road. Still alive, but barely;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2859977233; Occurrence Remarks: Heard rattle when snake was disturbed by barking dog; sighted on steps up to cottage along rocky shoreline Nares Inlet;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 2860284347; Occurrence Remarks: Large animal dead on road. 2 live seen crossing road at same location on afternoon of Sept 8, 2019 by Brett Groves.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 4936160194; Occurrence Remarks: Near a second one;; Coordinate Uncertainty in Meters: 27095.00000.

GBIFID: 2898305704; Occurrence Remarks: Very small, approx. 20cm, coiled, rattling, defensive position.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3008549615; Occurrence Remarks: We were on a canoe trip and camping on site 724. We saw one on July 31st and another the next morning on August 1st. In the pine grove on this site there are a number of holes amongst the roots of the trees. I believe there is a nest of Massasaugas here. A great location should you want to study them further.;; Coordinate Uncertainty in Meters: 27095.00000.

Manitoulin, Ontario: 46.151759, -81.26665: : 7/14/2013: Killarney Provincial Park: 14 Jul 2013 :

GBIFID: 3124538830; Occurrence Remarks: Potentially gestating;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3314575529; Occurrence Remarks: moved off road - photo by Bob Curry.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 1677311282; Occurrence Remarks: Trail at French River Interpretive Center off hwy 69, ON, Canada;; Coordinate Uncertainty in Meters: 27063.00000.

GBIFID: 3320893647; Occurrence Remarks: Rattle removed so perhaps this snake was run-over on purpose.;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 3325506977; Occurrence Remarks: 1 basking along trail.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3325566997; Occurrence Remarks: 1 basking along trail.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3327670827; Occurrence Remarks: Lot 155 parry island;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3327861388; Occurrence Remarks: Snake on road top and bottom text;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3327800671; Occurrence Remarks: AOR Eastern Massasauga Rattlesnake;; Coordinate Uncertainty in Meters: 27063.00000.

GBIFID: 3330701089; Occurrence Remarks: Two rattlesnakes, they appeared to be mating.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3333436563; Occurrence Remarks: Copulating - one female two males;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3335377577; Occurrence Remarks: Road kill on Sand Bay Road;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3335445817; Occurrence Remarks: Road kill on Sand Bay Road in Carling Township. Second observation of road kill Massasauga on this road in two days.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3337387924; Occurrence Remarks: Deceased;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3337581017; Occurrence Remarks: Had recently ingested a large meal and may also have been gravid.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3337546300; Occurrence Remarks: Two pictures, head and tail, of a Massasauga rattlesnake. It was sunning itself on a rack beside a frequently used path near a cottage. Also observed at a nearby location by a friend on 2021-07-29.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3337535264; Occurrence Remarks: Two pictures, head and tail, of a Massasauga rattlesnake. It was sunning itself on a rack beside a frequently used path near a cottage. Also observed at a nearby location by a friend on 2021-07-29.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3337730402; Occurrence Remarks: Massasauga Provincal Park. 4 separate snakes found on rocky area of Spider Lake to Clear Lake portage;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3343725629; Occurrence Remarks: DOR 26 subcaudal so could be male or female;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 1802676758; Occurrence Remarks: 1, in sandy backshore graminoid meadow;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3338146869; Occurrence Remarks: location chosen as centroid of park;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3337783746; Occurrence Remarks: Female with 6 young at gestation site. Total of 23 snakes (two adults and twenty one young) seen on this day.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3355146059; Occurrence Remarks: Briefly saw this little guy while hiking on the Twin Points Trail.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3355704095; Occurrence Remarks: Very small - approximately 8 in;; Coordinate Uncertainty in Meters: 27063.00000.

GBIFID: 3355152365; Occurrence Remarks: Spotted at 9pm likely coming from the water, travelling across flatish rock to marshy area. Did not appear pregnant. Did warning rattle. Saw it again 2 days later sunning itself on the rocks and in a patch of grass. Swam over to a neighbouring island that evening.;; Coordinate Uncertainty in Meters: 27158.00000.

GBIFID: 3384047662; Occurrence Remarks: Approx 2 feet in length, found on a Georgian Bay island, rattled but did not bite;; Coordinate Uncertainty in Meters: 27126.00000.

GBIFID: 3384744714; Occurrence Remarks: Small snake, road death;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3385105821; Occurrence Remarks: YOY;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391371848; Occurrence Remarks: First adult out of three adults. The two other adults were guarding some newly hatched Massasaugas. We saw overall about twenty of them that day in a short period of time! Rattle is painted red for research matters.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391692855; Occurrence Remarks: Babies from this adult-https://www.inaturalist.org/observations/97752281;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391720848; Occurrence Remarks: First individual we found this trip.;; Coordinate Uncertainty in Meters: 27190.00000.

GBIFID: 3391671830; Occurrence Remarks: This adult was guarding the first batch of babies we saw that camping trip-https://www.inaturalist.org/observations/97751736;; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.338772, -81.525543: : 8/13/2025: Jason L Miller: 13 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Manitoulin, Ontario: 46.096541, -80.956694: : 8/13/2025: ctrendos: 13 Aug 2025 ; Coordinate Uncertainty in Meters: 27063.00000.

Parry Sound, Ontario: 45.371926, -80.264366: : 8/21/2025: jmahood: 21 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Parry Sound, Ontario: 45.53579, -80.178108: : 8/22/2025: kenton_otterbein: 22 Aug 2025 ; Coordinate Uncertainty in Meters: 27158.00000.

Lake Hurron, Ontario: 45.29185, -80.376458: : 8/22/2025: brynevans2170: 22 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.355576, -80.309577: : 8/26/2025: jmahood: 26 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: Park staff guiding it across the street; Coordinate Uncertainty in Meters: 27190.00000.

Mackinac, Michigan: 45.813961, -84.425505: : 7/8/2026: suziebnj: 8 Jul 2026 ; Coordinate Uncertainty in Meters: 155783.00000.

Sudbury, Ontario: 46.13697, -80.566983: : 8/30/2025: Gabriella Collins: 30 Aug 2025 ; Coordinate Uncertainty in Meters: 27063.00000.

Parry Sound, Ontario: 45.495723, -80.42053: : 9/1/2025: mread: 1 Sep 2025 ; Coordinate Uncertainty in Meters: 27158.00000.

Lake Hurron, Ontario: 45.268608, -81.462437: : 9/1/2025: Matt Parsons: 1 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Parry Sound, Ontario: 45.527463, -80.146622: : 9/2/2025: hannahdodington: 2 Sep 2025 ; Coordinate Uncertainty in Meters: 27158.00000.

Lake Hurron, Ontario: 45.351845, -81.67011: : 9/3/2025: Darrell Parsons: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.334672, -80.275999: : 9/3/2025: toughy: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Lake Hurron, Ontario: 45.306014, -81.580312: : 8/24/2025: angelinadavidson: 24 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Parry Sound, Ontario: 45.331927, -80.063247: : 8/14/2025: Alex Heffernan: 14 Aug 2025 ; Coordinate Uncertainty in Meters: 27190.00000.

Occurrence Remarks: AOR, moved off road; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: please contact me for more info--Ill put you in touch with my friend who videotaped this; Coordinate Uncertainty in Meters: 27095.00000.

Unknown, Ontario: 45.497052, -80.203019: : 7/14/2026: Estelle Scott: 14 Jul 2026 ; Coordinate Uncertainty in Meters: 27158.00000.

Parry Sound, Ontario: 45.702586, -80.519933: : 5/28/2025: emilie baker: 28 May 2025 ; Coordinate Uncertainty in Meters: 27126.00000.

Unknown, Ontario: 45.733276, -80.517927: : 7/18/2026: lstephenson: 18 Jul 2026 ; Coordinate Uncertainty in Meters: 27126.00000.

Occurrence Remarks: Came back to this site the following day and found a second massasauga; Coordinate Uncertainty in Meters: 27190.00000.

Unknown, Ontario: 45.560696, -80.253744: : 7/21/2026: Estelle Scott: 21 Jul 2026 ; Coordinate Uncertainty in Meters: 27158.00000.

Occurrence Remarks: Still writhing sadly. Struck within minutes of us seeing it.; Coordinate Uncertainty in Meters: 27190.00000.