extends N to left bank of Innoko River, 1.2 mi. SE of Ophir and 30 mi. NW of McGrath, Kilbuck-Koskokwim Mts.
Prospectors' name reported in 1912 by A. G. Maddren and H. M. Eakin, U.S. Geological Survey (USGS).
Caribou Mountain, French Joe Mountain,
Streams:American Creek, Anvil Creek, Beaver Creek, California Creek, California Creek, Dodge Creek, Dollar Creek, Dome Creek, Ester Creek, Frying Pan Creek, Ganes Creek, Gold Run, Goldbottom Creek, Independence Creek, Little Creek, Naden Creek, Ophir Creek, Ready Bullion Creek, South Fork Yankee Creek, Spalding Creek, Spruce Creek, Steel Creek, Tamarack Creek, Warner Creek, Yankee Creek,
Valleys:Six Gulch, Skookum Gulch, Victor Gulch,
Cities: