heads in Brooks Range, flows NE to Colville River, 50 mi. NNE of Howard Pass, Arctic Slope. 68 miles long.
Eskimo name given by U.S. Geological Survey (USGS), referring to "the place where young Dall sheep are raised." The name first appears on a 1925 fieldsheet by Gerald FitzGerald, U.S. Geological Survey (USGS), as "Ipnavak."