Wisconsin
Snakes in Columbia County
11 species have been documented here, 2 of them venomous.
Venomous snakes in Columbia County
Full guide & what to do if bitten →
Eastern MassasaugaSistrurus catenatusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Columbia County
Common Garter Snake
Thamnophis sirtalis
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Eastern Foxsnake
Pantherophis vulpinus
Harmless
Common Watersnake
Nerodia sipedon
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Eastern Massasauga
Sistrurus catenatus
Venomous
Gopher Snake
Pituophis catenifer
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.