Bison shaking off water after coming out of the Yellowstone River

Bison grazing above Yellowstone Lake

Bison chewing cud

Bison herd with at least 9 calves crossing the Madison River

Bison calf hiding behind its mother shortly after birth

Bison fighting by Midway Geyser Basin - Yellowstone National Park
Bison herd in the snow - South of Mammoth Hot Springs - Yellowstone National Park

Day 2 - Bison in front of Yellowstone Lake

Crossing Yellowstone River - Yellowstone National park

"Seen one geyser you have seen them all." Grand Geyser, Upper Geyser Basin, Yellowstone NP

Big male bison coming at you - Hayden Valley - Yellowstone - 2022

Are you really looking at me? Why? Hayden Valley Yellowstone NP - 2022

Bison swimming in the Yellowstone River - Yellowstone = 2022

Yes, bison cross boardwalk, sometimes easier than we do. - Biscuit Basin - 2022

Bison bull calf probably less than 11 days old - Yellowstone - 2022

Aged bison probably 15+ years of age - Yellowstone - 2015
Fay Yocum Photography (c) 2006 - 2025