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[[Image:Geyser.jpg|thumb|300px|Castle Geyser in Yellowstone National Park]]

[[Image:Geyser.jpg|thumb|300px|Castle Geyser in Yellowstone National Park]]

'''Yellowstone National Park''' is a [[National Park]] located mostly in the state of [[Wyoming]], with small portions of the park in [[Idaho]] and [[Montana]].  The park is known for its [[geothermal]] features such as [[geyser]]s, [[hot spring]]s, and [[mud volcano]]s, which form the most visible part of the Yellowstone supervolcano, which had has erupted periodically and catastrophically over the past 1.8 million years.

'''Yellowstone National Park''' is a [[National Park]] located mostly in the state of [[Wyoming]], with small portions of the park in [[Idaho]] and [[Montana]].  The park is known for its [[geothermal]] features such as [[geyser]]s, [[hot spring]]s, and [[mud volcano]]s.

==External Links==

==External Links==