Big Horn Sheep, Custer S.P., SD

Bison cow with calf, Custard S.P., SD

Bison crossing river, Yellowstone N.P., WY

Bison herd, Yellowstone N.P., WY

Bison, Custer S.P., SD

Bison, Yellowstone N.P., WY

Black bear, Yellowstone N.P., WY

Coyote, Yellowstone N.P., WY

Elk buck with dow, Custer S.P., SD

Elk crossing highway, Yellowstone N.P., WY

Elk, buck by Yellowstone Lake, WY

Elk, female at a thermal area, Yellowstone N.P., WY

Moose, male, Grand Tetons N.P., WY

Mule Deer buck, Custar S.P., SD

Pronghorn antelope, Custer S.P., SD

Pronghorn antilope, male with transmitter, Custer S.P., SD