ICAO		IATA		Other		Location
				SD70		Keystone [Rushmore Heliport], South Dakota, US (35 mi / 57 km SE)
				0SD5		Custer [The Fort Heliport], South Dakota, US (37 mi / 59 km S)
KRCA		RCA		RCA		Rapid City [Ellsworth AFB], South Dakota, US (37 mi / 59 km E)
				SD86		Custer [Monument Health Custer Hospital Heliport], South Dakota, US (39 mi / 64 km S)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (40 mi / 64 km SW)
				WY55		Sundance [Taylor Field], Wyoming, US (40 mi / 64 km W)
				JECA		Jewel Cave National Monument [Jewel Cave NM], South Dakota, US (41 mi / 66 km S)
KRAP		RAP		RAP		Rapid City [Rapid City Regional], South Dakota, US (42 mi / 67 km SE)
KCUT				CUT		Custer [Custer County Airport], South Dakota, US (42 mi / 67 km S)
				4SD4		Rapid City [Dan's Airport], South Dakota, US (42 mi / 68 km SE)
				3SD2		Box Elder [Kauer Airport (Private)], South Dakota, US (44 mi / 71 km E)
				W43		Hulett [Muni], Wyoming, US (45 mi / 72 km NW)
				83V		Upton [Muni], Wyoming, US (45 mi / 72 km W)
				3V0		Fairburn [Custer State Park Airport], South Dakota, US (47 mi / 76 km SE)
				DETO		Devils Tower National Monument [Devils Tower NM], Wyoming, US (49 mi / 79 km W)
				WY14		Hulett [Ipy Ranch Airport], Wyoming, US (49 mi / 79 km NW)
				01WY		Moorcroft [Keyhole Airport], Wyoming, US (50 mi / 81 km W)
				WICA		Wind Cave National Park [Wind Cave NP], South Dakota, US (55 mi / 89 km S)
				WY56		Hulett [Pierce Ranch Airport], Wyoming, US (59 mi / 94 km NW)
				SD98		Enning [Barber Airport], South Dakota, US (62 mi / 101 km E)