Boreal Red-backed Vole
Boreal red-backed vole, Clethrionomys gapperi
The boreal red-backed vole, also known as the southern red-backed vole, is an extant species of rodent that is currently found throughout Canada and the mountainous and extreme northern portions of the U.S. It had a more southerly distribution during the last ice age, and serves as an indicator of cooler temperatures during that time.
Cricetidae (Lemmings and Voles)
Length: 12.7-15.2 cm (5-6 in)
Weight: 6-42 gm (0.21-1.48 oz)