steam rising from Old Faithful, Yellowstone National Park
bobcat in snow, Yellowstone National Park
Grand Prismatic Spring, Yellowstone National Park
gray wolves in snow, Yellowstone National Park
Bison grazing in snow
Great Fountain Geyser
Waterfall cascading down cliffs
Walkway near steaming thermal vents
Elk and tree amid snow
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Old Faithful
Vapor rises from Old Faithful, one of Yellowstone's most popular attractions. Not the largest or the most regular of the park's geysers, Old Faithful erupts more frequently, with each blast expelling between 3,700 to 8,400 gallons (14,000 to 32,000 liters) of boiling water.
Photograph by Tom Murphy, Nat Geo Image Collection

Yellowstone National Park Photos

Yellowstone National Park photos and pictures of culture, history, and travel from National Geographic.

November 05, 2009

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