Montana
Snakes in Gallatin County
7 species have been documented here, 1 of them venomous.
Venomous snakes in Gallatin 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 Gallatin County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Northern Rubber Boa
Charina bottae
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
North American Racer
Coluber constrictor
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.