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Yellowstone National ParkA bull elk grasses on fall grass.
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Yellowstone National Park
Anatomy of a Hot Spring
Illustration of a hot spring.
A Hot Spring
 
At times, fierce, boiling waters within a hot spring (such as Crested Pool) can explode, shooting water into the air, acting much like a geyser. It is believed, however, that in the case of Crested Pool, no constrictions block the flow of water to the surface. The spring's wide mouth and 42-foot depth provide a natural conduit for superheated water to circulate continuously to the surface.
Lake Trout Illustration  

Did You Know?
Lake trout are an invasive species of fish that is decimating the native cutthroat trout population in Yellowstone Lake.

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Last Updated: July 20, 2006 at 18:27 EST