heads at 675300N1534900W, flows SW to Alatna River, 24 mi. S of Survey Pass, Brooks Range
Eskimo name first reported by Stoney (1900, map), U.S. Navy (USN), in 1886 as "Koo-too-ark" or "Koo-to-ark," but spelled "Kutuk" by P. S. Smith (1913, p. 35), U.S. Geological Survey (USGS).