Anabranch of Porcupine River, flows SW 11 mi. NE of Fort Yukon, Yukon Flats. 10 miles long.
Local name, derived from that of the Black River, which flows into the Porcupine River just east of Black River Slough. Reported in 1956 by T. E. Taylor, U.S. Geological Survey (USGS).
Rodman Island, Twelvemile Island,
Lakes:Emile Lake, Ninemile Lake, Old Man Lake, Otto Lake, Sixmile Lake,
Rivers:Streams:Bear Blanket Slough, Black River Slough, Eightmile Slough, Seventeenmile Slough, Seventeenmile Slough, Squirrel Creek,