ICAO		IATA		Other		Location
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (17 mi / 28 km E)
				SD90		Spearfish [Mitchells Strip], South Dakota, US (18 mi / 29 km E)
KSPF		SPF		SPF		Spearfish [Black Hills-Clyde Ice Field], South Dakota, US (19 mi / 30 km E)
				WY55		Sundance [Taylor Field], Wyoming, US (22 mi / 35 km W)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (23 mi / 37 km SE)
				WY53		Four Corners [Moburg Aero Airport], Wyoming, US (24 mi / 38 km S)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (26 mi / 41 km NE)
				W43		Hulett [Muni], Wyoming, US (26 mi / 42 km NW)
				DETO		Devils Tower National Monument [Devils Tower NM], Wyoming, US (30 mi / 48 km W)
				WY14		Hulett [Ipy Ranch Airport], Wyoming, US (30 mi / 49 km NW)
				2SD5		Sturgis [Sturgis Heliport], South Dakota, US (32 mi / 51 km E)
				01WY		Moorcroft [Keyhole Airport], Wyoming, US (33 mi / 53 km W)
				83V		Upton [Muni], Wyoming, US (34 mi / 54 km SW)
				SD26		Sturgis [Mike Jacob Sturgis Heliport], South Dakota, US (35 mi / 56 km E)
				SD24		Sturgis [Eden Valley Airport], South Dakota, US (37 mi / 60 km E)
				SD35		Sturgis [Bruch Airfield], South Dakota, US (38 mi / 61 km E)
				2SD0		Nemo [Paradise Valley Airport], South Dakota, US (38 mi / 61 km SE)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (38 mi / 62 km S)
				49B		Sturgis [Muni], South Dakota, US (38 mi / 62 km E)
				WY56		Hulett [Pierce Ranch Airport], Wyoming, US (43 mi / 69 km NW)