Lake and Peninsula topographic maps
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Aniakchak National Monument
United States > Alaska > Lake and Peninsula
The national monument is centered on the 6-mile (9.7 km) diameter crater of ancient Mount Aniakchak, which was destroyed and the resulting crater formed during a caldera collapse event about 3,700 years ago. The original mountain, about 7,000 feet (2,100 m) tall, collapsed into its magma chamber, leaving an…
Average elevation: 376 m
