Description
Koyukuk River is located heads at its Middle and North Forks, flows SW 425 mi. to Yukon River, 22 mi. NE of Nulato; Koyukuk Low.
History
Koyukan Indian name first recorded by Lieutenant L. A. Zagoskin, Imperial Russian Navy (IRN), as "Kuyukak" (and "Yunaka" or "Yunnaka"). Nulato referred to the stream as "Kuiuk" or "Kuyaak." Western Union Telegraph Expedition spelled the name "Coyukuk." Board on Geographic Names (BGN) standardized the present spelling. river was explored by Zagoskin in 1842-44 and in 1885, Lieutenant H. T. Allen, USA, explored almost its entire length.