Mount Aniakchak is a 3,700 year old volcanic caldera, about 10 kilometers in diameter, located in the Aleutian Range of Alaska, United States.

Mount Aniakchak is a 3,700 year old volcanic caldera, about 10 kilometers in diameter, located in the Aleutian Range of Alaska, United States.

Mount Aniakchak is a 3,700 year old volcanic caldera, about 10 kilometers in diameter, located in the Aleutian Range of Alaska, United States.
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