Aniakchak National Monument and Preserve


Aniakchak National Monument and Preserve

geographical name

Park, southern shore of the Alaska Peninsula, U.S. Situated in the volcanically active Aleutian Range, it consists primarily of a great dry caldera, which last erupted in 1931. The crater has an average diameter of 6 mi (10 km). Declared a national monument in 1978, it covers 942 sq mi (2,440 sq km).

This entry comes from Encyclopædia Britannica Concise.
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