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

Description One of the largest voles, with dark brownish fur and large ears. Tail is long, and blackish or brownish. Feet are brownish or blackish with brown claws and six plantar tubercles. Ears are large and broad and extend above the fur.

Dimensions 169-225mm, 48-70mm, 47-83g

Similar Species Large size distinguishes it from other voles.

Habitat Swamps, marshes & bogs, Meadows & fields, Alpine & subalpine habitats, Forests & woodlands

Range California, Northwest, Western Canada

Discussion They are good swimmers, capable of crossing small streams. Nests are on or above the ground, often in slightly higher areas, to avoid flooding. Found in wet meadows and marshes with dense grass and sedge cover, from sea level to 1800m.