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The flagship feature of Norris Geyser Basin in Yellowstone National Park, Steamboat Geyser is the tallest active geyser in the world, although its infrequent and unpredictable behavior makes observing an eruption quite rare. When it does erupt, Steamboat Geyser blasts water 300 to 400 ft (91 to 121 m) into the air.
Address: . Norris WY USA
 1 307 344-7381
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Echinus Geyser
Echinus Geyser is part of the Norris Geyser Basin in Yellowstone National Park. The geyser erupts a few times per day and is the largest acid-water geyser in known existence.
Address: . Norris WY USA
1 307 344-7381
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