Rodents of the Columbia River Gorge of Oregon and Washington
Class Rodentia
Porcupine (Erethizon dorsatum) observed at the forest's edge near Conboy Lake National Wildlife Refuge.
North American Beaver: Castor canadensis
Gophers
Mice and Voles
Porcupine (Erethizon dorsatum)
Chipmunks, Marmots, Ground and Tree Squirrels