ICAO		IATA		Other		Location
				WY07		Douglas [Hardy Ranch Airport], Wyoming, US (59 mi / 95 km SW)
				11WY		Hulett [Thompson Creek Oilfield Airport], Wyoming, US (61 mi / 99 km N)
				WY44		Mule Creek Junction [Robbers Roost Ranch Airport], Wyoming, US (65 mi / 105 km SE)
				WY56		Hulett [Pierce Ranch Airport], Wyoming, US (67 mi / 108 km NE)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (69 mi / 112 km E)
				MT50		Alzada [Lanning Ranch Airport], Montana, US (71 mi / 114 km N)
				JECA		Jewel Cave National Monument [Jewel Cave NM], South Dakota, US (71 mi / 115 km E)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (72 mi / 116 km E)
				SD90		Spearfish [Mitchells Strip], South Dakota, US (73 mi / 117 km E)
KSPF		SPF		SPF		Spearfish [Black Hills-Clyde Ice Field], South Dakota, US (73 mi / 118 km E)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (78 mi / 126 km NE)
				0SD9		Custer [Crazy Horse Heliport], South Dakota, US (78 mi / 126 km E)
				0SD5		Custer [The Fort Heliport], South Dakota, US (79 mi / 127 km E)
KBYG		BYG		BYG		Buffalo [Johnson County Airport], Wyoming, US (80 mi / 128 km W)
KCUT				CUT		Custer [Custer County Airport], South Dakota, US (81 mi / 130 km E)
				SD86		Custer [Monument Health Custer Hospital Heliport], South Dakota, US (81 mi / 131 km E)
				(MT59)		Hammond [Gardner Airport], Montana, US (82 mi / 133 km N)
				2SD0		Nemo [Paradise Valley Airport], South Dakota, US (84 mi / 135 km E)
				2SD5		Sturgis [Sturgis Heliport], South Dakota, US (85 mi / 137 km E)
				6V0		Edgemont [Muni], South Dakota, US (86 mi / 139 km SE)