Description
Twin Mountain is located in Kuskokwim Mts., near head of Innoko River, 9 mi. E of Ophir and 24 mi. NW of McGrath, Kilbuck-Kuskokwim Mts.
History
Prospectors' name obtained in 1908 by Maddren (1910, pl. 1), U.S. Geological Survey (USGS).