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Yellowstone National ParkRoosevelt Arch is at the park's North Entrance
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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.
Fishing Bridge.  

Did You Know?
You cannot fish from Fishing Bridge. Until 1973 this was a very popular fishing location since the bridge crossed the Yellowstone River above a cutthroat trout spawning area. It is now a popular place to observe fish.

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