South Dakota
Snakes in Stanley County
6 species have been documented here, 1 of them venomous.
Venomous snakes in Stanley 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 Stanley County
Prairie Rattlesnake
Crotalus viridis
Venomous
Plains Garter Snake
Thamnophis radix
Harmless
North American Racer
Coluber constrictor
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Plains Hognose Snake
Heterodon nasicus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.