Word: aniakchak
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Dates: during 1970-1979
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...ANIAKCHAK CALDERA. Located near the eastern end of the Aleutian island chain, the area is a geological oddity-a volcanic crater 10 kilometers (6 miles) in diameter and dotted with smaller volcanoes. Inside the crater is a remarkable blue-green lake on which seaplanes carrying sightseers can land. The more adventuresome can canoe down the Aniakchak River, which flows out of the lake through a cleft in the crater wall and drops some 600 meters (2,000 ft.) and 43 kilometers (27 miles) to the North Pacific...