This rugged area is home to several endangered and threatened species, including woodland caribou, grizzly bears, and gray wolves. The Selkirk Mountains are the last remaining refuge for woodland caribou in the contiguous United States, particularly the Salmo-Priest Wilderness. Common wildlife include mule deer, white-tailed deer, elk, black bears, cougars, bobcats, badgers, pine martens, lynx, bighorn sheep, and moose.