Charlie Billups:
Hayden Valley, Yellowstone National Park Bison
Charlie Billups:
Buffalo drinking water in Yellowstone River
Charlie Billups:
Hayden Valley, Yellowstone National Park
Charlie Billups:
American Bison at Hayden Valley
Charlie Billups:
American Bison at Hayden Valley II
Charlie Billups:
American Bison in Hayden Valley, Yellowstone
Charlie Billups:
American Bison in Hayden Valley, Yellowstone, WY
Charlie Billups:
American Bison at Hayden Valley, Yellowstone National Park
Charlie Billups:
Proud American Bison at Hayden Valley, Yellowstone National Park
Charlie Billups:
American Bison in the middle of the road in Hayden Valley, Yellowstone National Park
Charlie Billups:
American Bison in Hayden Valley III
Charlie Billups:
American Bison in Black and White
Charlie Billups:
Bison in the water at Hayden Valley
Charlie Billups:
The Bison of Hayden Valley
Charlie Billups:
American Bison at the Yellowstone River
Charlie Billups:
Lonely Bison in Hayden Valley, Yellowstone National Park
Charlie Billups:
An American Bison crosses the road Hayden Valley, Yellowstone National Park.
Charlie Billups:
Bison in Black and White