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Aniakchak National Monument & PreserveGround Squirrel
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Aniakchak National Monument & Preserve
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Did You Know?  

Did You Know?
Aniakchak Caldera is six miles (10 kilometers) across and 3,000 feet (1000 meters) deep. Created by a volcanic eruption approximately 3,500 years ago, the caldera resulted from the collapse of a 7,000 foot mountain.

Last Updated: August 09, 2006 at 20:57 EST