Description
Mastodon Creek is located flows W to Tolstoi Creek, 23 mi. NW of Ophir and 53 mi. NW of McGrath, Kilbuck-Kuskokwim Mts.
History
Prospectors' name reported in 1917 by G. L. Harrington (in Martin and others, 1919, pl. 9), U.S. Geological Survey (USGS).