A Bison in the early morning light at Slough Creek in Yellowstone NP, Wyoming, USA
Grand Chromatic Spring, Yellowstone NP, Wyoming, USA
Lower Yellowstone Falls, Yellowstone NP, Wyoming, USA
Colloidal Pool Surface Ripples, Yellowstone NP, Wyoming, USA
Bisons in a Snow Flurry, Yellowstone NP, Wyoming, USA
Punch Bowl Spring, Yellowstone NP, Wyoming, USA
Algea, Norris Geyser Basin, Yellowstone NP, Wyoming, USA
Bison, Yellowstone NP, Wyoming, USA
Black Sand Pool, Yellowstone NP, Wyoming, USA
Grey Wolves, Hayden Valley, Yellowstone NP, Wyoming, USA
U.S. Highway 191, Yellowstone NP, Wyoming, USA
Sour Lake Bubbles, Yellowstone NP, Wyoming, USA
Lake Yellowstone, Yellowstone NP, Wyoming, USA
Chipmunk, Yellowstone NP, Wyoming, USA
Porcelain Basin, Yellowstone NP, Wyoming, USA
Grand Chromatic Spring, Yellowstone NP, Wyoming, USA
Dragon's Mouth Spring, Yellowstone NP, Wyoming, USA
Bighorn Sheep, Yellowstone NP, Wyoming, USA
Lower Terrace, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Bisons crossing a river in Yellowstone NP, Wyoming, USA
Grand Chromatic Spring, Yellowstone NP, Wyoming, USA
Harlequin Duck, Yellowstone NP, Wyoming, USA
Canary Spring, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Coyote Den, Yellowstone NP, Wyoming, USA
Solitary Geyser, Yellowstone NP, Wyoming, USA
Grand Canyon of the Yellowstone, Yellowstone NP, Wyoming, USA
Prairie Dog, Yellowstone NP, Wyoming, USA
Jupiter Terrace, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Moose, Silver Gate, Yellowstone NP, Wyoming, USA
Morning Glory Pool, Yellowstone NP, Wyoming, USA
Bison running, Yellowstone NP, Wyoming, USA
Grand Chromatic Spring, Yellowstone NP, Wyoming, USA
Morning Fog, Yellowstone NP, Wyoming, USA
Lower Terrace, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Bison, Yellowstone NP, Wyoming, USA
Grand Chromatic Spring, Yellowstone NP, Wyoming, USA
Madison River, Yellowstone NP, Wyoming, USA
Rainbow Pool, Yellowstone NP, Wyoming, USA
Moose, Silver Gate, Yellowstone NP, Wyoming, USA
Black Diamond Pool, Yellowstone NP, Wyoming, USA
Bison, Yellowstone NP, Wyoming, USA
Excelsior Geyser, Yellowstone NP, Wyoming, USA
Handkerchief Pool, Yellowstone NP, Wyoming, USA
Gibbon Falls, Yellowstone NP, Wyoming, USA
Black Diamond Pool, Yellowstone NP, Wyoming, USA
Marmot, Yellowstone NP, Wyoming, USA
Belgian Pool, Yellowstone NP, Wyoming, USA
Moose Calf, Yellowstone NP, Wyoming, USA
Lake Yellowstone, Yellowstone NP, Wyoming, USA
Firehole River, Yellowstone NP, Wyoming, USA
Grotto Geyser, Yellowstone NP, Wyoming, USA
Yellowstone River, Yellowstone NP, Wyoming, USA
Upper Geyser Basin, Yellowstone NP, Wyoming, USA
Canary Spring, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Minerva Terrace, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Lewis Falls, Yellowstone NP, Wyoming, USA
Harlequin Ducks, Yellowstone NP, Wyoming, USA
Bison, Yellowstone NP, Wyoming, USA
Minerva Terrace, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA
Sawmill Geyser, Yellowstone NP, Wyoming, USA
Cleopatra Terrace, Mammoth Hot Springs, Yellowstone NP, Wyoming, USA