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Herd of buffalo crossing river in Yellowstone National Park
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
Black Diamond Pool Geysers at Yellowstone National Park. Biscuit basin trail.
Bison in Yellowstone National Park
High-angle panoramic shot of the Yellowstone River cutting through the colored rock of the Grand Canyon of the Yellowstone in Yellowstone National Park
Elevated view of Grand Prismatic Spring
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.
Snowcapped mountains on the horizon of in Grand Teton National Park.
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 giant bull moose grazes at the end of Wonder Lake early one peaceful summer morning with Mount McKinley and the Alaska range standing guard. Denali National Park, Alaska.
Bison Grazing in the Lamar Valley of Yellowstone National Park.
Excelsior Spring in Yellowstone
Stunning natural phenomenon
a buck mule deer during the fall rut in Colorado
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.
Caribou grazing near a river with mountains close by.
Two bull moose in the Snowy Range of Wyoming's Medicine Bow Mountains.
Portrait of an Antelope or Pronghorn in Yellowstone National Park.
Southeast Oregon's High Desert.\nSteens Mountain Wilderness/SE.
A small herd of Bison grazing aling the rolling hills of Colorado.
near Lake Tahoe, serene destination, early morning on the lake, refreshing, fresh start, calm water, misty morning, rising fog on lake
Clouds of steam are rising from pools of hot water illuminated by intense low angle sunlight, Twin Geyser, West Thumb Geyser Basin, Yellowstone National Park
An image of Yellowstone Geyser in Yellowstone National Park
Boiling water bubbler Geyser. Active geyser with major eruptions. Yellowstone NP, Wyoming, USA
Two Big Horn ram sheep close up, near Pikes Peak standing high on a rock outcrop in the Garden of the Gods with massive sandstone rock formation in background in Colorado Springs, Colorado USA of North America.
Teton Mountains Grand Teton Wilderness with river and fall autumn trees
Backlighting emphasizes the cracked checkerboard pattern on CHeckerboard Meas. Zion National Park, Utah, USA. Oct 1979 scanned film.
Beautiful nature of the Rocky Mountains of Canada. Red deer with branched antlers resting in the grass
The snow has returned to Interior Alaska as another winter creeps into the state.
Free Images: "bestof:yellowstone national park yellowstonenationalpark yellowstone national park nationalpark wyoming animal mammal Elk sleeping; Neal Herbert; October 2013; Catalog"
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