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Big horn ram sniffing the air on a steep hill side. This was taken in January at Round Prairie, Lamar Valley, Yellowstone National Park, Wyoming, USA.. Cooke City, Montana is the closest town.
a wild horse mare and foal in the Pryor Mountains Montana in summer
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.
Pronghorn rut in fall in Yellowstone National Park
A small herd of Bison grazing aling the rolling hills of Colorado.
Two buck mule deer square off for a duel in a clearing on a cold Colorado winter morning.
Pronghorns are among the fastest land animals in North America, capable of reaching speeds up to 55 mph. They are known for their impressive long-distance migrations, traveling up to 150 miles between summer and winter ranges. Despite early 20th-century population declines, conservation efforts have helped pronghorns rebound, making them a notable presence in the park's diverse ecosystem. Despite often being called \
a ram dall sheep (ovis dalli dalli) with large curled horns grazes on bushes in Denali National Park, Alaska
Bison in Yellowstone National Park
Black Diamond Pool Geysers at Yellowstone National Park. Biscuit basin trail.
Caribou grazing near a river with mountains close by.
Bison Grazing in the Lamar Valley of Yellowstone National Park.
Excelsior Spring in Yellowstone
Pronghorn or antelope standing, close up on hill in the Yellowstone Ecosystem of western USA, North America. Nearest cities are Denver, Colorado, Salt Lake City, Cody, Jackson, Wyoming, Gardiner, Cooke City, West Yellowstone, Bozeman and Billings, Montana.
Elevated view of Grand Prismatic Spring
Southeast Oregon's High Desert.\nSteens Mountain Wilderness/SE.
Lower Falls on the North Rim of Yellowstone, USA
Bison in Winter Landscape in Yellowstone National Park
Portrait of an Antelope or Pronghorn in Yellowstone National Park.
An image of Yellowstone Geyser in Yellowstone National Park
wild horses in the Utha desert in springtime
closeup of pronghorn antelope in the wild
A beautiful closeup view of a bison standing in the middle of the field
Geysers and Hot Springs at Yellowstone
Pronghorn buck resting in grassy meadow in Yellowstone National Park
Stunning natural phenomenon
Ram male bighorn sheep standing on the edge of a cliff with frosty winter grasses
Backlighting emphasizes the cracked checkerboard pattern on CHeckerboard Meas. Zion National Park, Utah, USA. Oct 1979 scanned film.
Input in  Yellowstone national park in the USA
Two bull moose in the Snowy Range of Wyoming's Medicine Bow Mountains.
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