extend NE from Kustatan Ridge at mouth of McArthur River, 30 mi. NW of Kenai, Cook Inlet Low.
Local name reported in 1958 by U.S. Geological Survey (USGS).
Chakachatna River, McArthur River, Middle River, West Fork Kustatan River,
Streams:Chuitkilnachna Creek, Cottonwood Slough, Noaukta Slough, Stedatna Creek,