Montana
Snakes in Cascade County
7 species have been documented here, 1 of them venomous.
Venomous snakes in Cascade County
Full guide & what to do if bitten →
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Cascade County
Prairie Rattlesnake
Crotalus viridis
Venomous
Gopher Snake
Pituophis catenifer
Harmless
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
North American Racer
Coluber constrictor
Harmless
Northern Rubber Boa
Charina bottae
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Cascade County: FAQ
- Are there venomous snakes in Cascade County, Montana?
- Yes. 1 venomous snake species has verified records in Cascade County, Montana, including Prairie Rattlesnake. Most snakes in Cascade County, Montana, however, are harmless.
- How many snake species live in Cascade County, Montana?
- 7 snake species have verified records in Cascade County, Montana, of which 1 is venomous.
- What is the most commonly seen snake in Cascade County, Montana?
- The Prairie Rattlesnake is the most frequently reported snake in Cascade County, Montana, based on verified wildlife observations.
- What should I do if I see a venomous snake in Cascade County, Montana?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.