Idaho records
Desert Nightsnake in Idaho
HarmlessHypsiglena chlorophaea

Yes. The Desert Nightsnake has been recorded in 7 Idaho counties. It is non-venomous (harmless). Pale gray with dark blotches, vertical pupils, and dark neck blotches.
Idaho counties with Desert Nightsnake records
7 listedSee the full Desert Nightsnake profile or all snakes in Idaho.