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West Yellowstone, Montana
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The Grotto Fountain Geyser is known for its distinctive cone, which resembles a series of stone arches, giving it a grotto-like appearance.
This geyser erupts approximately every 8 hours, with each eruption lasting about 10 minutes.
It is located within the Upper Geyser Basin of Yellowstone National Park, which hosts the largest concentration of geysers in the world.
The water temperature in the geyser can reach up to 199°F (93°C), which is close to boiling point at Yellowstone's elevation.
The activity of nearby geysers, such as the Giant Geyser, can affect the timing and intensity of Grotto Fountain Geyser's eruptions.
