In the Endicott Mountains, 5 mi NE of Rumbling Mountain; BrooksRa.
Named for Morry Maptigak (died 1957), leader of a Numuit tribe in the area.
East Alapah Glacier, West Alapah Glacier,
Mountains:Alapah Mountain, Alapah Mountain, Blackface Mountain, Fan Mountain, Gray Mountain, Katiktak Mountain, Maptigak Mountain, Marshmallow Mountain, Rumbling Mountain, Slatepile Mountain,
Mountain Passes:Streams:Alinement Creek, Ernie Creek, Fake Creek, Graylime Creek, Grizzly Creek, Grizzly Creek, Irish Creek, Irish Creek, Kenunga Creek, Pyramid Creek, Pyramid Creek, Shushalluk Creek, Tributary Creek,
Valleys: