British Columbia
Snakes in Mount Waddington
3 species have been documented here, 1 of them venomous.
Venomous snakes in Mount Waddington
Full guide & what to do if bitten →
Western RattlesnakeCrotalus oreganusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Mount Waddington

Common Garter Snake
Thamnophis sirtalis
Harmless

Northwestern Garter Snake
Thamnophis ordinoides
Harmless

Western Rattlesnake
Crotalus oreganus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.