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

Koyukuk River (North Fork), Alaska

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Managing Agency:

National Park Service, Gates of the Arctic National Park and Preserve

Designated Reach:

December 2, 1980. The segment within Gates of the Arctic National Park.


Wild — 102.0 miles; Total — 102.0 miles.

Koyukuk River


Koyukuk River (National Park Service)

Photo Credit: Tim Palmer

Koyukuk River (North Fork)

This river flows from the south flank of the Arctic Divide through broad, glacially carved valleys in the rugged Endicott Mountains of Alaska's Central Brooks Range. It passes between the "Gates of the Arctic" at Boreal Mountain and Frigid Crags.