Idaho
Snakes in Fremont County
7 species have been documented here, 1 of them venomous.
Venomous snakes in Fremont County
Full guide & what to do if bitten →
Western RattlesnakeCrotalus oreganusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Fremont County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
North American Racer
Coluber constrictor
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
Northern Rubber Boa
Charina bottae
Harmless
Striped Whipsnake
Masticophis taeniatus
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.