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Does Yellowstone National Park have a volcano?

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Another caldera-forming eruption is theoretically possible, but it is very unlikely in the next thousand or even 10,000 years. Scientists have also found no indication of an imminent smaller eruption of lava. How do scientists know the Yellowstone volcano won't erupt? read more

The gorgeous colors of Yellowstone National Park's Grand Prismatic hot spring are among the park's myriad hydrothermal features created by the fact Yellowstone is a supervolcano - the largest type of volcano on Earth. read more

Yellowstone National Park IS a volcano (or at least a very large part of it) -- one, great bit, immense caldera of. a supervolcano. It last erupted 640,000 years ago, and formed the caldera, which is around 34x45 miles. read more

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