heads at 602600N, 1584400W, flows NE joins Shotgun Creek to form Holitna River, 65 mi. SW of Sleetmute, Kilbuck-Kuskokwim Mts.
Eskimo name spelled "Ko-gruk-luk" in the winter of 1902-03 by W. R. Buckman, prospector.
Chukowan River, Kogrukluk River,
Streams:Bakbuk Creek, Kiknik Creek, Mukslulik Creek, Shotgun Creek,
Cities: