Little Bighorn River Bighorns have rattlesnakes because they also support a habitat for small mammals, like a mouse and chipmunk population, which are the prey of rattlesnakes. With the restoration of the black bear population in the Bighorn Mountains, there has been a resurgence of black bear living along the stream as it flows out of Montana, extending down the Little Bighorn Valley in Montana. Ranchers between the mouth of the canyon (at about the Wyoming Montana line) down to Wyola often report black bear groups living in the timber along the river, and travelers on the Montana portion of the Little Horn
Little Bighorn River top the Bighorn Mountains. In Wyoming, at the end of the two mile stretch of road from the mouth of the canyon Bighorn National Forest Service lands extend up to and over the top of the Bighorn Mountains. In the Little Bighorn watershed there are cougars, black bears, deer, elk, wild turkeys and other birds and small mammals, all of which are common to the Bighorn Mountains. An occasional moose has been sighted. The floor and sides of the Little Bighorn canyon is notorious for rattlesnakes. Herpetologists from the Bighorn National Forest state that the east facing canyons of the