Bureau of Land Management National Park Service U.S. Fish and Wildlife Service U.S. Forest Service

Aniakchak River, Alaska

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Managing Agency:

National Park Service, Aniakchak National Monument and Preserve

Designated Reach:

December 2, 1980. That portion of the river—including its major tributaries, Hidden Creek, Mystery Creek, Albert Johnson Creek and the North Fork Aniakchak River—within the Aniakchak National Monument and Preserve.


Wild — 63.0 miles; Total — 63.0 miles.

Aniakchak River


Aniakchak National Monument

Photo Credit: Thomas O'Keefe

Aniakchak River

Lying entirely within Aniakchak National Monument and Preserve, you can float the river from inside the caldera of a volcano to the ocean past spectacular wildlife and geology. The river moves swiftly through a narrow gorge, and large rocks demand precise maneuvering. Only the most experienced rafters contemplate this float trip that takes three to four days to complete.