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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.
Norris Geyser Basin, Yellowstone National Park.
Image of Steamy pools of acidic waters in Norris Basin of Yellowstone
Hot spring and geyser with deep aqua cave and wilderness background at Yellowstone National Park, USA.
Norris Geyser Basin, Yellowstone, Wyoming - United States of America
Looking at Grand Prismatic Spring
Black Pool hot spring with Yellowstone Lake in the background
Grand Prismatic Spring in Yellowstone National Park Wyoming, horizontal
Yellow and green colored Morning Glory Pool at daytime with blue sky and forest in background
Grand Prismatic Spring in Yellowstone National Park in Wyoming, USA
The most famous hot spring in the World, Grand Prismatic Spring, viewed from the fairy falls trail in Yellowstone National Park
Norris Geyser Basin in Yellowstone in Winter
Yellowstone National Park
Majestic Yellowstone lake
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.
Porcelain Springs area of Norris Geyser Basin a very active thermal area in Yellowstone National Park, Wyoming.
Grand Prismatic Spring, Yellowstone National Park, Wyoming
Yellowstone NP nature
The Grand Prismatic Spring in Yellowstone National park
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA
Scenic View of Grand Prismatic Spring
The beautiful landscape in majestic Yellowstone National Park in Wyoming.
Boiling water bubbler Geyser. Active geyser with major eruptions. Yellowstone NP, Wyoming, USA
Old Faithful Geyser Eruption\nYellowstone National Park
The World Famous Grand Prismatic Spring in Yellowstone National Park,USA
Opal Pool is a hot spring in the Midway Geyser Basin of Yellowstone National Park, Wyoming. Opal Pool usually has a temperature of approximately 132 °F.
Panoramic extremely colorful Grand Prismatic Springs from a distance with bright blue sky and light steam lifting off lake of rainbow colors
Yellowstone National Park
Grand Prismatic Spring in Yellowstone National Park
View of beautiful pool in geyser area in Yellowstone National Park, Wyoming, USA.
Free Images: "bestof:yellowstone yellowstone national park yellowstonenationalpark outdoor architecture Old Faithful Visitor Education Center; Neal Herbert; June 2015; Catalog"
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