68 ° 46' 18.998" N,
156 ° 38' 24" W
North Slope
1135 ft (345.95 m)
Heads at 683625N, 1564545W, flows N to the Ipnavik River, 5 mi WNW of Smith Mountain Lakes, Brooks Range.
HistoryNamed for Walter R. Blankenship, who was a field hand for U.S. Geological Survey (USGS) northern Alaska field parties from 1924-1926.