heads NW of Old Grouchtop, flows SW and NW to Innoko River, 52 mi. NE of Holikachuck and 53 mi. NW of Ophir, Innoko Low. 50 miles long.
Name published in 1965 by U.S. Geological Survey (USGS).
Big Yetna River, Yetna River,
Grouch Creek, Hammer Creek, Magitchlie Creek,