Koyukuk River
Tributary in Alaska
The Koyukuk River is a 425-mile tributary of the Yukon River, in the U.S. state of Alaska. It is the last major tributary entering the Yukon before the larger river empties into the Bering Sea. Wikipedia
Sources: Middle Fork Koyukuk River and North Fork Koyukuk River
Length: 425 mi
Mouth: Yukon River
Discharge: 14,250 ft³/s
Cities: Evansville
Basin size: 32,000 sq mi (83,000 km2)
Census Area: Yukon-Koyukuk
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