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Aniakchak Crater

Mount Aniakchak, Aniakchak National Monument and Preserve
Lake and Peninsula County, Alaska

Aniakchak-caldera alaska
Photo: United States Geological Survey License: 2
Aniakchak is an extant volcano. The caldera formed during a major eruption in 1645 B.C. The most recent eruption was in 1931. Surprise Lake within the caldera is the source of the Aniakchak River, a National Wild River.

Aniakchak Crater Categories


Map of the Area Around
Aniakchak Crater


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