These large toads are well camouflaged in earth tones with dry bumpy skin that aids in protection from predators. Their color can be highly variable among individuals ranging from gray or reddish-brown to yellow or green. They have a light colored stripe that runs along the center of the back. Adult female toads are larger than males, growing to five inches in length.
They live mainly on land in a range of habitats from forests to mountain meadows to desert flats. During the non-breeding season, they are nocturnal. They dig their own burrows in loose soil, use existing burrows or hide under logs, other woody debris and rocks for daytime cover.
Western toads are Oregon Conservation Strategy Species in six of the nine ecoregions: Blue Mountains, Coast Range, East Cascades, Klamath Mountains, Northern Basin and Range, West Cascades.