Heads on SE slope of Kaiyuh Mts. at 641000N,1571700W, flows SW and SE to Mud River 10 mi. N of its junction with Innoko River, 60 mi. NW of Ophir and 64 mi. S of Nulato, Innoko Low.
Local name published in 1965 by U.S. Geological Survey (USGS). Indian name "Kluklaklatna" was reported in 1908 by A. G. Maddren, U.S. Geological Survey (USGS). See Mud River.