On the Seward Peninsula, E of Hannum Creek, 34 km (21 mi) SW of Deering.
Named for Neal Winston Foster (?-1979), the State's first Director of Air Commerce, a member of the Territorial and State Legislatures, and who developed mining claims on nearby Hannum Creek.
Asses Ears, Black Butte, Crossfox Butte, Mount Foster, Skeleton Butte, Virginia Butte,
Pillars:Streams:American Creek, Clifford Creek, Collins Creek, Cottonwood Creek, Cunningham Creek, Divide Creek, Eureka Creek, Fox Creek, Hannum Creek, Iron Creek, May Creek, Milroy Creek, Nelson Creek, Noyes Creek, Oregon Creek, Reindeer Creek, Rex Creek, Trail Creek,
Valleys: