Yellowstone
Established in 1872, Yellowstone National Park is America’s first national park. Yellowstone contains half of all the world’s known geothermal features and has the world’s largest concentration of geysers.
Grand Geyser, Upper Geyser Basin, Yellowstone National Park, USA
Grand’s fountain reaches a height of as much as 200 feet (60 m), with a duration of 9–12 minutes.
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