flows NW to Middle Fork Fortymile River, 55 mi. SW of Eagle, Yukon-Tanana High. 18 miles long.
Prospectors' name obtained in 1898 by E. C. Barnard, U.S. Geological Survey (USGS).
Crab Creek, Enterprise Creek, Fish Creek, Gold Bottom Creek, Gold Run, Jim Creek, Little Whiteman Creek, Manila Creek, McKinley Creek, Missoula Creek, Pennsylvania Creek, Pittsburgh Creek, Portage Creek, Silver Bow Creek, Texas Creek, Van Milligan Creek, Watson Fork,
Valleys: