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Excelsior Spring in Yellowstone
Dozens of bison graze in a high mountain field with the Rocky Mountains in the background.  It's late Spring and the mountains are still full of snow, with storm clouds rolling in, but the buffalo seem undisturbed.
Bison in Yellowstone National Park
Stunning natural phenomenon
Pronghorn rut in fall in Yellowstone National Park
An image of Yellowstone Geyser in Yellowstone National Park
A beautiful closeup view of a bison standing in the middle of the field
Geysers and Hot Springs at Yellowstone
Algae-bacterial mats. Hot thermal spring, hot pool in the Yellowstone NP. USA
Pronghorn Antelope walking through deep snow in East Central Idaho.
TERRAZZE DI MAMMOTH HOT SPRINGS
Bull moose with new antlers just starting to grow is walking in shallow water with beautiful snow banks along the stream at the round prairie in Yellowstone National Park, Wyoming, USA. The nearest city is Cooke City, Montana
Steam released from geysers at Yellowstone National Park in Wyoming.
Erupting thermal spring, one of many nature wonders in the Yellowstone National Park, Wyoming, USA.
The American bison grazing on a field along the river
Southeast Oregon's High Desert.\nSteens Mountain Wilderness/SE.
Yellowstone Falls in Yellowstone National Park
Pronghorn Antelope in East Central Idaho.
Musk ox in autumn Dovrefjell National Park Norway
Kangaroo, Outback Australia,
Panorama shot of red steaming hot lake thermal spring in yellowstone national park in amerika, usa
Jackson, USA - June 30, 2013: Welcome to Wyoming sign with forest-covered hill background.
Spectacular panoramic views of Grand Prismatic Geyser in Yellowstone National Park, Wyoming Montana. Midway Geyser Basin. Great hiking. Summer wonderland to watch natural landscape. Geothermal.
The American bison or simply bison (Bison bison), also commonly known as the American buffalo or simply buffalo, Yellowstone National Park, Wyoming. Mother and young calf running.
Storm clouds forming over geyser runoff in Yellowstone National Park
Hot Spring, Famous Place, Geyser, National Landmark, Summer
Bluebell Pool, in the West Thumb Geyser Basin in Yellowstone National Park
Northwest Wyoming's Rocky Mountains.
Exploring the beauty of Zion National Park from before sunrise to long after sunset from the valley floor to soring majestic peeks.
Running antelope (pronghorn) in cold snowy prairie in Montana in northwestern United States of America.
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