flows to Yukon River at devils Elbow, 1 mi. NW of Roundabout Mtn. and 23 mi. SW of Russian Mission, Yukon-Kuskokwim Delta
Riverboat pilots' name shown on a 1922 manuscript chart of the Yukon River; probably named for the riverboat Washburn that was sunk here in 1918.
Cunningham Mountain, Engineer Hill,
Islands:Blade Island, Bluefish Island, Elsie Island, Willow Island,
Lakes:Mountains:Mountain Passes:Streams:Deep Creek, East Fork Spruce Creek, Engineer Creek, Faith Creek, Joe Wise Creek, McNeill Creek, Number 1 Creek, Number One Creek, Owl Creek, Slope Creek, Spruce Creek, Washburn Slough, Willow Creek, Zone Creek,
Valleys:Cities: