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Geysers at Midway Geyser Basin Trailhead, Yellowstone National Park.
Yellowstone National Park, Wyoming, USA
Grand Prismatic Spring in Yellowstone National Park
Path around Grand Prismatic Geyser in Midway Geyser Basin. Yellowstone, USA
Morning Glory pool at Yellowstone National Park, Wyoming, USA.
Beautiful abstract view of Sapphire Pool in Yellowstone National Park
Old Faithful Geyser is one of the most famous geysers in the world, known for its regular eruptions. It was named in 1870 for its reliability in spewing hot water and steam at intervals of 60 to 110 minutes, reaching heights of 100 to 180 feet. Each eruption lasts about 1.5 to 5 minutes, discharging up to 8,400 gallons of water. Old Faithful is fueled by geothermal activity from the Yellowstone Caldera, a supervolcano, and has erupted more than a million times since the park's founding.
Deatiled photo of Bluebell pool from above. Yellowstone National Park, Wyoming, USA
Closeup of Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA
Nighttime at Yellowstone Grand Prismatic Spring with stormy clouds in the background
Yellowstone Rainbow Pool in Winter
Boiling Hot Springs with Steam in Yellowstone National Park Background Landscape Nature Water
Located in Yellowstone National Park, Wyoming, the largest hot spring in the United States and third larges in the world.  The amazing colors are actually the heat loving microbes in the pools.
Grand Prismatic Spring in Yellowstone National Park, the largest hot spring in the United States: The beautiful abstract Midway Geyser Basin with rainbow prism colors
Grand Prismatic Springs in Yellowstone
Grand Prismatic Spring Overlook in Yellowstone National Park, Wyoming, USA.
Old Faithful Geyser Eruption, Wonderful natural landscape. Yellowstone National Park is famous for its rich wildlife species and geothermal resources.
Geysers at Midway Geyser Basin Trailhead, Yellowstone National Park.
Upper Geyser Basin in Yellowstone
Lower Falls at Grand Canyon of the Yellowstone
Serene Mountain Range View with Trees in Yellowstone National Park Background Landscape Nature Valley Blue
Located in Yellowstone National Park, Wyoming, the largest hot spring in the United States and third largest in the world.  The amazing colors are actually varying species of heat loving microbes in the pools - each having a different color and existing at a different temperature.
Image of Detail of colorful Yellowstone pools of acidic sulfur
Grand prismatic spring at sunny blue sky, , Yellowstone National Park, USA.
Old Faithful Yellowstone National Park, Wyoming, USA.
A small geyser near the river at the national park.
Hot spring in Yellowstone National Park in summer with blue sky
Black Diamond Pool Geysers at Yellowstone National Park. Biscuit Basin Trail.
Detail of one of the hot springs that are located at Yellowstone National Park.
Yellowstone National Park turquoise thermal pool, Wyoming, USA.
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