Idaho
Snakes in Lemhi County
6 species have been documented here, 1 of them venomous.
Venomous snakes in Lemhi 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 Lemhi County
Prairie Rattlesnake
Crotalus viridis
Venomous
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Gopher Snake
Pituophis catenifer
Harmless
North American Racer
Coluber constrictor
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Northern Rubber Boa
Charina bottae
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Lemhi County: FAQ
- Are there venomous snakes in Lemhi County, Idaho?
- Yes. 1 venomous snake species has verified records in Lemhi County, Idaho, including Prairie Rattlesnake. Most snakes in Lemhi County, Idaho, however, are harmless.
- How many snake species live in Lemhi County, Idaho?
- 6 snake species have verified records in Lemhi County, Idaho, of which 1 is venomous.
- What is the most commonly seen snake in Lemhi County, Idaho?
- The Prairie Rattlesnake is the most frequently reported snake in Lemhi County, Idaho, based on verified wildlife observations.
- What should I do if I see a venomous snake in Lemhi County, Idaho?
- 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.