Family: Muridae, Mice and Rats view all from this family

Description Tiny vole with drab buff to ash-gray pelage that is lax, long, and dense. Base of hairs are dark gray. Tail is short, indistinctly bicolored with a dusky line above, and silvery white to buff below. Feet are white or light gray to pale buff, with six plantar tubercles.

Dimensions 103-142mm, 16-30mm, 17-38g

Habitat Grasslands & prairies, Scrub, shrub & brushlands

Range Plains, Rocky Mountains, Southwest, California, Northwest, Western Canada

Discussion They have both indistinct surface runways and tunnels under the snow. Nests are in complex burrow systems, or under logs. The diet is strictly limited to green vegetation. Lives in colonies in semi-brushy canyons dominated by sagebrush or rabbit brush mixed with bunchgrass at elevations from 300 to 3700m.