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Hot springs are the most common hydro-thermal features at Yellowstone National Park.  They vary from frothing mocha-like boiling water to clear and calm pools of tremendous depth.
Thermophilic Microbial Mat at Sapphire Pool in Biscuit Basin of Yellowstone National Park, Wyoming
Norris Geyser Basin, Yellowstone, Wyoming - United States of America
Emerald Pool at Black Sand Basin  in Yellowstone National Park_2550
The beautiful landscape in majestic Yellowstone National Park in Wyoming.
Norris Geyser Basin in Yellowstone in Winter
Abyss Pool a hot spring of the West Thumb Geyser Basin, Yellowstone National Park, Wyoming, USA
Norris Geyser Basin at Yellowstone National Park
Cliff Geyser on Iron Spring Creek at Black Sand Basin on Upper Geyser Basin in Yellowstone National Park, Wyoming
colorful landscape of the midway geyser basin area of yellowstone national park.
Yellowstone River cuts a deep canyon as it moves north in the Yellowstone Ecosystem in western USA and North America.  Nearest cities are Gardiner, Cooke City, Bozeman, Billings, Montana, Jackson, Wyoming, Salt Lake City, Utah and Denver, Colorado.
grand prismatic spring in Yellowstone National Park in Wyoming
Yellowstone National Park
Geothermal Hot Springs at Mammoth Hot Springs, Yellowstone National Park, USA
Utah, USA-September 10, 2011: The Yellow Stone National Park is one of the Natrual Wonders in the world. Here is the beautiful scenery of the National Park.
Fumarole and geyser environment in Yellowstone National Park
Place Sign for Mammoth Hot Springs in Yellowstone National Park, Wyoming
Yellowstone park
Lower Falls at Grand Canyon of the Yellowstone
Shrouded in Snow Fog and Steam Witches Basin is Full of boiling caldrons, hot gushing springs, fumeroles and vents.  Backcountry skiers enjoy Witch Creek splenders while staying the night and bathing in the hot stream Early March 1986.
A beautiful view of a valley in Yellowstone at sunset, steam blowing across the landscape from volcanic pools and vents.  Three bison are barely visible in the background resting in the evening light.
Grand Prismatic Spring | 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
Yellowstone National Park sits on top of a dormant volcano and is home to more geysers and hot springs than any other place on earth. Wonders abound at this truly unique national park, from sites like the Yellowstone Grand Canyon to wildlife like America's largest buffalo herd, grizzly bears, and wolves.
The Artists' Paintpots are a vibrant geothermal area. Known for its colorful hot springs and bubbling mud pots, the site showcases a variety of hues due to different minerals and thermophilic microorganisms.
Geyser in grand prismatic spring Basin in Yellowstone National Park in Wyoming
Grand Loop road view, Washburn Hot Springs Overlook in Yellowstone National Park, Wyoming, USA.
Yellowstone
Norris Geyser Basin in Yellowstone in Winter
Free Images: "bestof:FortYellowstone1895FJHaynes.jpg 03001032 en Fort Yellowstone in 1895 as viewed from Capitol Hill Yellowstone National Park WY Scanned from cite book F Jay"
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