Montana records
Plains Garter Snake in Montana
HarmlessThamnophis radix

Yes. The Plains Garter Snake has been recorded in 20 Montana counties. It is non-venomous (harmless). Slender body with three light stripes running the length of a darker back.
Montana counties with Plains Garter Snake records
20 listedSee the full Plains Garter Snake profile or all snakes in Montana.