the upper geyser basin yellowstone national park usa

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Chromatic Spring Pool in Upper Geyser Basin in Yellowstone National Park, USA Royalty Free Stock Photo

Crested Pool hot spring in Upper Geyser Basin in Yellowstone National Park, USA Royalty Free Stock Photo

Doublet Pool, a double pool hot spring in Upper Geyser Basin in Yellowstone National Park, USA Royalty Free Stock Photo

Morning Glory Pool Hot Spring in the Upper Geyser Basin, Yellowstone National Park, Wyoming, USA Royalty Free Stock Photo

West side of beauty pool in yellowstone Royalty Free Stock Photo

The Upper Geyser Basin in Yellowstone National Park,USA.

Upper Geyser basin, Yellowstone National park Royalty Free Stock Photo

Steam rising from various geysers in the Upper Geyser Basin in Yellowstone National Park Royalty Free Stock Photo

The Upper Geyser Basin, approximately two square miles in area, contains the largest concentration and nearly one-quarter of all of the geysers in the world. A variety of thermal features exist here: spouting geysers, colorful hot springs, and steaming fumaroles.