ICAO		IATA		Other		Location
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (164 mi / 263 km W)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (164 mi / 264 km W)
				SD19		Badger [Andersen Farms Airport], South Dakota, US (165 mi / 265 km E)
				6NA5		Hebron [Chase Airstrip], North Dakota, US (165 mi / 266 km NW)
KBWW		BWM		BWW		Bowman [Bowman Regional], North Dakota, US (166 mi / 267 km NW)
				SD03		Winfred [Calico Field], South Dakota, US (166 mi / 267 km E)
				SD86		Custer [Monument Health Custer Hospital Heliport], South Dakota, US (166 mi / 267 km SW)
				NA98		Scranton [Dilse Airstrip], North Dakota, US (167 mi / 268 km NW)
				0SD9		Custer [Crazy Horse Heliport], South Dakota, US (167 mi / 268 km W)
KATY		ATY		ATY		Watertown [Watertown Regional], South Dakota, US (167 mi / 268 km E)
				0SD5		Custer [The Fort Heliport], South Dakota, US (167 mi / 269 km W)
				WICA		Wind Cave National Park [Wind Cave NP], South Dakota, US (168 mi / 270 km SW)
				0SD2		Watertown [Prairie Lakes West Heliport], South Dakota, US (168 mi / 271 km E)
KCUT				CUT		Custer [Custer County Airport], South Dakota, US (168 mi / 271 km SW)
				NE89		O'Neill [Bar Lazy B Airport], Nebraska, US (168 mi / 271 km SE)
				ND54		Robinson [Whitman Field], North Dakota, US (168 mi / 271 km N)
				1NE0		Brownlee [Higgins Bros Airport], Nebraska, US (169 mi / 271 km S)
				NA32		Eldridge [Johnson Airstrip], North Dakota, US (169 mi / 272 km NE)
				15SD		Watertown [Brownlee Heliport], South Dakota, US (169 mi / 272 km E)
				9V5		Rushville [Modisett Airport], Nebraska, US (169 mi / 272 km SW)