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Old Faithful geyser erupts at Yellowstone National Park as a young bison grazes nearby. The famous geyser erupts at an average interval of 90 mins, expelling up to 8,400 gallons of boiling water at up to 184 feet high.
With Teton peaks in background Grizzly bear sow and yearling cubs make way south in the Yellowstone Ecosystem in western USA, North America. Nearest cities are Denver, Colorado, Salt Lake City, Jackson, Wyoming, Gardiner, Cooke City, Bozeman and Billings, Montana.
Image of Steamy pools of acidic waters in Norris Basin of Yellowstone
Lower Falls in the Grand Canyon of Yellowstone National Park of USA
colorful poos
Old Faithful Geyser in the Upper Geyser Basin of Yellowstone National Park in the winter with steam. Sun.
Hot spring and geyser with deep aqua cave and wilderness background at Yellowstone National Park, USA.
A thermal Pool in the Fountain Paint Pots in the lower geyser basin of Yellowstone National Park
Geothermal pool in winter Yellowstone National Park steaming
Old Faithful Geyser Eruption\nYellowstone National Park
A river flows along the caldera at Yellowstone National Park.
Old Faithful geyser erupting in February with Old Faithful Inn in the background in the Yellowstone Ecosystem in western USA. Nearest cities are Denver, Colorado, Salt Lake City, Jackson, Wyoming, Gardiner, Cooke City, Bozeman, and Billings, Montana, USA, North America.
Groups of people have been waiting to watch, experience and photograph this Old Faithful  eruption just after sunset on a sunny early autumn day.
Black Pool hot spring with Yellowstone Lake in the background
Panoramic extremely colorful Grand Prismatic Springs from a distance with bright blue sky and light steam lifting off lake of rainbow colors
Grand Prismatic Spring in Yellowstone National Park in Wyoming, USA
Old Faithful erupts into the blue sky on a winter day in Yellowstone National Park of Wyoming.
Norris Geyser Basin in Yellowstone in Winter
Image of Vibrant pools of color in basin of Yellowstone in winter
Grey (or gray) wolf looking over buffalo (bison) on snow covered hill.  This wolf is a large canine native to Eurasia and North America. The wolf is the largest extant member of the family Canidae, males average 88 lbs. and females average 82 lbs. The grey wolf can be various colors.  The banded fur is usually mottled white, brown, gray, and black. This was near Tower junction in Yellowstone National Park between Gardiner and Cooke City Montana. Larger nearby cities are Bozeman and Billings, Montana. John Morrison Photographer
Castle Geyser erupting with rainbow, Yellowstone national park, Wyoming, USA.
Old Faithful erupts during the winter in Yellowstone National Park
Landscape of geyser basin with smoke and background of pine forest inside hot zone of Yellowstone National Park, Wyoming, USA.
Wild Elk in Rocky Mountain National Park outside of Estes Park, Colorado.
Elk are the most abundant large mammal found in Yellowstone and are an important species within the Greater Yellowstone Ecosystem.\n Elk comprise approximately 85% of winter wolf kills and are an important food for bears, mountain lions, and at least 12 scavenger species. Elk are one of the most photographed animals in Yellowstone
Norris Geyser Basin, Yellowstone, Wyoming - United States of America
The most famous hot spring in the World, Grand Prismatic Spring, viewed from the fairy falls trail in Yellowstone National Park
Information highway sign at northeast Yellowstone Tower junction in northwestern Wyoming, USA.
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Lower Falls of the Yellowstone River from Artist Point. Grand Canyon of the Yellowstone River. Yellowstone National Park, Wyoming.
Free Images: "bestof:yellowstone yellowstone national park yellowstonenationalpark winter outdoor Old Faithful Snowlodge at night; Jim Peaco; January 2011; Catalog #20413d; Original"
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