25 mi. SW of junction of Charley and Yukon Rivers, Yukon-Tanana High.
Prospectors' name reported in 1905 by D. C. Witherspoon, U.S. Geological Survey (USGS). Probably so named, because the mountain appears to have two peaks when seen from the north.
Mount Ernest Patty, Mount Kathryn, Twin Mountain,
Streams:Beverly Creek, Caribou Creek, Crescent Creek, Essie Creek, Grouse Creek, Hosford Creek, Iron Creek, Mineral Creek, Moore Creek, Poverty Creek, Slate Creek,
Valleys:Cities: