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<strong>Yukon</strong> <strong>River</strong> <strong>Unified</strong> <strong>Watershed</strong> <strong>Assessment</strong><br />

Koyukuk <strong>River</strong><br />

Figure 27 - Koyukuk <strong>River</strong> <strong>Watershed</strong><br />

Wildlife Refuge and the Koyukuk<br />

National Wildlife Refuge. The<br />

Selawik NWR is adjacent to the<br />

Koyukuk drainage on the West.<br />

The Trans-Alaska Pipeline runs<br />

through the Northeastern<br />

portion of the Drainage.<br />

<strong>Inter</strong>spersed through this area<br />

are the native lands selected by<br />

Doyon Ltd. and Arctic Slope<br />

Regional Corp. and the Village<br />

Corporations.<br />

Wild and Scenic <strong>River</strong>s in the<br />

The Koyukuk <strong>River</strong> drainage is<br />

underlain by continuous permafrost.<br />

The Koyukuk <strong>River</strong> and its tributaries<br />

drain the western portion of the<br />

Brooks Range. The Koyukuk <strong>River</strong><br />

flows for 400 miles in a southwesterly<br />

direction to its confluence with the<br />

<strong>Yukon</strong> <strong>River</strong>.<br />

Within the Koyukuk drainage are the<br />

Gates of the Arctic National Park &<br />

Preserve, <strong>Yukon</strong> Flats National<br />

Wildlife Refuge, Kanuti National<br />

drainage are the Alatna (within the Gates of the Arctic NPR), the John (within the Gates of<br />

the Arctic NPR), the North Fork of the Koyukuk (within the Gates of the Arctic NPR), and<br />

the Tianayguk, a tributary to the North Fork of the Koyukuk (within the Gates of the<br />

Arctic NPR).<br />

Figure 29 - Koyukuk <strong>River</strong> NPS Sites<br />

Figure 28 - Koyukuk <strong>River</strong> Land Status<br />

Gold was discovered in the later 1800’s<br />

in the upper Koyukuk Drainage. The US<br />

Bureau of Land Management is currently<br />

conducting two reclamation projects in<br />

the drainage. The Gold Bench and<br />

Ironside are located in the upper<br />

reaches of the drainage.<br />

Other impacts to the drainage include<br />

the LRRS at Indian Mountain, FUDS<br />

locations, petroleum spills and historic<br />

mining. The Trans-Alaska Pipeline<br />

crosses the Upper Koyukuk <strong>River</strong>.<br />

June 2002 Page 31 of 44

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