Heads on the southwest slope of Mount Harper and flows southwest to Tanana River, 32 miles southeast of Big Delta, Yukon-Tanana Highlands. 43 miles long.
Named by prospectors about 1902-04; reported in 1905 by L M Prindle, U.S. Geological Survey (USGS).
Black Lake, Donna Lake, Lake George, Healy Lake, Healy Lake, Hidden Lake, Little Donna Lake, Moose Lake, Twelvemile Lake,
Rivers:Healy River, Little Gerstle River,
Streams:Cities: