• Aerial view of Aniakchak Caldera taken from northern rim


    National Monument & Preserve Alaska

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Did You Know?

Did You Know?

Vent Mountain is actually a volcano within a volcano. It looms 2,200 feet (670 meters) above the Aniakchak Caldera floor. Numerous similar lava flows have occured within Aniakchak National Monument & Preserve.