ICAO		IATA		Other		Location
				NA90		Underwood [Circle Z Landing Strip], North Dakota, US (169 mi / 273 km NE)
				26SD		Radip City [Shooting Star Ranch Heliport], South Dakota, US (170 mi / 273 km S)
				Y19		Mandan [Mandan Regional/Lawler Field], North Dakota, US (170 mi / 274 km E)
				3SD2		Box Elder [Kauer Airport (Private)], South Dakota, US (170 mi / 274 km SE)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (171 mi / 275 km S)
				3NA2		Washburn [Lorentzen Airport], North Dakota, US (172 mi / 276 km NE)
KPIN						Piney Creek, Wyoming, US (172 mi / 276 km SW)
KRAP		RAP		RAP		Rapid City [Rapid City Regional], South Dakota, US (173 mi / 278 km SE)
				4SD4		Rapid City [Dan's Airport], South Dakota, US (173 mi / 278 km SE)
				D58		Timber Lake [Muni], South Dakota, US (173 mi / 279 km E)
				ND44		Underwood, North Dakota, US (173 mi / 279 km NE)
				99WY		Dayton [Xingu Airstrip], Wyoming, US (174 mi / 279 km SW)
				07MT		Glasgow [Glasgow Industrial Airport], Montana, US (174 mi / 280 km NW)
				PPNM		Pompeys Pillar National Monument [Pompeys Pillar NM], Montana, US (174 mi / 280 km W)
				5C8		Washburn [Muni], North Dakota, US (175 mi / 281 km NE)
				SD18		Rapid City [Keystone Heliport], South Dakota, US (175 mi / 281 km S)
				9MT0		Fort Smith [Pale Morning Dun Ranch Airport], Montana, US (175 mi / 282 km W)
				ND30		Bismarck [Sanford Health-Bismark Heliport], North Dakota, US (176 mi / 283 km E)
				ND46		Bismarck [St. Alexius Med-I-Port Heliport], North Dakota, US (176 mi / 283 km E)
				9S2		Scobey, Montana, US (176 mi / 284 km N)