Description
Twelvemile Creek is located flows E to Birch Creek, 56 mi. SW of Circle, Yukon-Tanana High.
History
So named by prospectors probably because its mouth is about 12 mi. west of Mastodon Dome. Some of the early gold discoveries of the Birch Creek region were made there in 1893 (Spurr, 1898, p. 347). The name was reported in 1903 by T. G. Gerdine (in Prindle, 1905, pl. 13), U.S. Geological Survey (USGS).