Wisconsin
Snakes in Trempealeau County
7 species have been documented here, 1 of them venomous.
Venomous snakes in Trempealeau County
Full guide & what to do if bitten →
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Trempealeau County
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Foxsnake
Pantherophis vulpinus
Harmless
Common Watersnake
Nerodia sipedon
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
North American Racer
Coluber constrictor
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.