Yellowstone National Park

Osprey nest on a pinnacle above the Yellowstone River

Yellowstone National Park

Osprey nest on a pinnacle above the Yellowstone River

Yellowstone National Park

Osprey nest on a pinnacle above the Yellowstone River

Yellowstone National Park

Bison

Yellowstone National Park

Pronghorn Antelope

Yellowstone National Park

Pronghorn Antelope

Yellowstone National Park

Brown-headed cowbird on the back of a bison

Yellowstone National Park

Bison

Yellowstone National Park

Bison

Yellowstone National Park

Bison

Yellowstone National Park

Bison

Yellowstone National Park

Bison in the Lamar Valley - traffic jam.

Yellowstone National Park

Mule deer

Yellowstone National Park

Mule deer

Yellowstone National Park

Mule deer

Yellowstone National Park

Mule deer

Yellowstone National Park

Yellow-bellied marmot

Yellowstone National Park

Beartooth Highway. Although not officially located in Yellowstone National Park, the Beartooth Highway is a spectacular road leading into the Northeastern corner of the park.

Yellowstone National Park

Gardner River

Yellowstone National Park

Beartooth Highway. Although not officially located in Yellowstone National Park, the Beartooth Highway is a spectacular road leading into the Northeastern corner of the park.

Yellowstone National Park

Gardner River