SSW of junc of Kenunga and Ernie Creeks, 23 mi. E of Anaktuvuk Pass, Brooks Range
So named by local trappers because of 3,000 feet sheer blackface of conglomerate rock. Reported in 1932 by Robert Marshall.
East Alapah Glacier, West Alapah Glacier,
Mountains:Alapah Mountain, Alapah Mountain, Als Mountain, Blackface Mountain, Boreal Mountain, Cockedhat Mountain, Fan Mountain, Frigid Crags, Hanging Glacier Mountain, Katiktak Mountain, Limestack Mountain, Maptigak Mountain, Marshmallow Mountain, Slatepile Mountain,
Mountain Passes:Ernie Pass, Gates of the Arctic, Holmes Pass, Peregrine Pass,
Streams:Alinement Creek, Bombardment Creek, Ernie Creek, Fake Creek, Fish Creek, Graylime Creek, Grizzly Creek, Grizzly Creek, Irish Creek, Kachwona Creek, Kenunga Creek, Pyramid Creek, Saint Patricks Creek, Shushalluk Creek, Tributary Creek,
Valleys: