Family: Geomyidae, Pocket Gophers view all from this family

Description A widespread and variable gopher with dark patches behind the ear. Color can be brown or grayish brown to yellow-brown. A small Thomomys, with short soft fur that is less glossy than in most other species. Often has white markings under chin.

Dimensions 165-260mm, 40-75mm, 60-160g

Habitat Alpine & subalpine habitats, Meadows & fields, Lakes, ponds, rivers & streams

Range Plains, Great Lakes, Rocky Mountains, Southwest, California, Northwest, Eastern Canada, Western Canada

Discussion This species is associated with “Mima Mounds,” mounded areas up to 2m high and 20m in diameter in grassland areas. The larger the mounds, the more gophers using an area. Uses a variety of open habitat types, even forests with widely spaced trees.