flows SW to Mastodon Creek, 20 mi. NW of Ophir and 50 mi. NW of Mcgrath, Kilbuck-Kuskokwim Mts.
Prospectors name published in 1921 by U.S. Geological Survey (USGS).
Mount Hurst, Madison Mountain,
Streams:Baker Creek, Basin Creek, Boob Creek, Bryan Creek, Deep Creek, Dome Creek, Donovan Creek, Eldorado Creek, Esperanto Creek, Frisco Creek, Hurst Creek, Iron Creek, Ledge Creek, Madison Creek, Mammoth Creek, Mastodon Creek, Wilson Creek,