Grizzly bear in Yellowstone park
The sign at the summit of Mt Washburn which, at an elevation of 10,243 feet, is the highest point in Yellowstone National Park
Gray wolf during fall in Yellowstone park.
Roosevelt Arch, north entrance to Yellowstone National Park.N
A male American bison stands along in Hayden Valley in Yellowstone National Park During the summer, the animal sheds its thick winter fur coat.