344 mi. long; heads 26 mi. WSW of Circle Hot Springs, 13 mi. ENE of Twelvemile Summit, flows S, E, N, then generally NW through Steese National Conservation Area (Bureau of Land Management) and Yukon Flats National Wildlife Refuge before entering an unnamed anabranch of the Yukon River 3 mi. ESE of Willow Point, 7.7 mi. SW of Venetie Landing. Tps20-11N, Rgs7- 17E; Tps11-5N, Rgs16-5; and Tps5-7N, Rgs10-11E, Fairbanks Meridian
The former name Birch Creek was given in the mid 1800s by traders of the Hudson's Bay Company at Fort Yukon. One of its Native names, applied to its upper mouth, was reported to be "Tohwun-nukakat," while "Nocotocargut," reported by the Western Union Telegraph expedition in 1867, probably applies to its lower mouth. Gold was discovered on this stream in 1891. The variant name (in part) Upper Mouth Birch Creek was a local name published in 1951 by U.S. Geological Survey (USGS).