20march1989:
Yellowstone Elk - near Canyon
20march1989:
Yellowstone Bison - Hayden Valley
20march1989:
Yellowstone Pronghorn - Lamar Valley
20march1989:
Yellowstone - Hayden Valley Spotting Scope
20march1989:
Yellowstone Moose near Mount Washburn
20march1989:
Yellowstone Bison - Mud Volcano