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Morning Glory pool at Yellowstone National Park, Wyoming, USA.
Layers of Colorful Sulfur Sediment from hot spring
Boiling Hot Springs with Steam in Yellowstone National Park Background Landscape Nature Water
Geysers at Midway Geyser Basin Trailhead, Yellowstone National Park.
Closeup of Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA
Pattern and structure of water drains from geysers around Old Faithful Snow lodge and steaming geysers. In Yellowstone National Park. USA
Norris Geyser Basin in Yellowstone National Park which is the hotest geyser basin in the park.  Porcelain Basin with hot springs, thermal algae; steam and various colors. Bacterial thermophiles.
Detail of one of the hot springs that are located at Yellowstone National Park.
West Thumb Geyser Basin in Yellowstone National Park in Wyoming, USA: The Majestic Hot Springs formed by a large volcanic explosion 150,000 years ago
Grand Prismatic Spring Overlook in Yellowstone National Park, Wyoming, USA.
Sipoholon Hot Springs are hot springs in Tapanuli. This sulfur-containing bath was formed due to the eruption of Mount Martimbang
Jewel Geyser at Biscuit Basin on Upper Geyser Basin in Yellowstone National Park, Wyoming
Geyser in grand prismatic spring Basin in Yellowstone National Park in Wyoming
The aquamarine colors of this Yellowstone hot spring are reflections of bacteria that thrive in the hottest waters of the park.
Close up of thermophilic algae found in hot springs with extreme environmental conditions of temperature  greater than 50 degrees Celsius, light, pH and nutrient composition.
Bacterias grow in high temperatures in hot water geysers
Old Faithful Yellowstone National Park, Wyoming, USA.
Textures and colors of the terrain in Yellowstone National Park XXI, USA
Scenery at Upper Geyser Basin, Yellowstone National Park, Wyoming, USA
Image of Detail of colorful Yellowstone pools of acidic sulfur
Grand Prismatic Spring in Yellowstone National Park
Eruption of the Great Fountain Geyser in Yellowstone National park.
Jewel Geyser at Biscuit Basin on Upper Geyser Basin in Yellowstone National Park, Wyoming
Opal Pool in the Yellowstone National Park. This geological phenomenon demonstrates the amazing beauty of this scenic natural feature.
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.
White Dome Geyser erupting in the Great Fountain Group, Yellowstone National Park, USA
Yellowstone's largest hot spring and third largest in the world
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