Colorado
Snakes in Fremont County
13 species have been documented here, 1 of them venomous.
Venomous snakes in Fremont 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 Fremont County
Gopher Snake
Pituophis catenifer
Harmless
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Plains Black-headed Snake
Tantilla nigriceps
Harmless
Tantilla selmae
Harmless
Chihuahuan Nightsnake
Hypsiglena jani
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Plains Hognose Snake
Heterodon nasicus
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.