69 ° 10' 36.001" N,
161 ° 4' 43" W
North Slope
1529 ft (466.04 m)
extends between Kokolik and Utukok Rivers, Arctic Slope. 30 miles long.
HistorySo named by U.S. Geological Survey (USGS) geologists in 1947 because the ridge "gives the impression on vertical photographs of an Archimedes screw owing to the effect of snow and shadows" (Chapman and Sable, 1960, p. 52).