ICAO		IATA		Other		Location
				WY53		Four Corners [Moburg Aero Airport], Wyoming, US (9 mi / 14 km NW)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (18 mi / 28 km SW)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (19 mi / 31 km NE)
				JECA		Jewel Cave National Monument [Jewel Cave NM], South Dakota, US (21 mi / 33 km SE)
				0SD9		Custer [Crazy Horse Heliport], South Dakota, US (22 mi / 35 km SE)
				0SD5		Custer [The Fort Heliport], South Dakota, US (23 mi / 36 km SE)
				SD86		Custer [Monument Health Custer Hospital Heliport], South Dakota, US (26 mi / 41 km SE)
KCUT				CUT		Custer [Custer County Airport], South Dakota, US (26 mi / 43 km SE)
				2SD0		Nemo [Paradise Valley Airport], South Dakota, US (28 mi / 46 km NE)
				SD18		Rapid City [Keystone Heliport], South Dakota, US (28 mi / 46 km E)
				GC0067		Keystone [Mt. Rushmore Helipad], South Dakota, US (29 mi / 46 km E)
				SD62		Keystone [Borglum Heliport], South Dakota, US (30 mi / 48 km E)
				SD70		Keystone [Rushmore Heliport], South Dakota, US (30 mi / 48 km E)
				SD42		Keystone [Rushmore Heliport], South Dakota, US (30 mi / 48 km E)
				83V		Upton [Muni], Wyoming, US (33 mi / 52 km W)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (34 mi / 54 km N)
				SD90		Spearfish [Mitchells Strip], South Dakota, US (34 mi / 55 km N)
KSPF		SPF		SPF		Spearfish [Black Hills-Clyde Ice Field], South Dakota, US (35 mi / 56 km N)
				26SD		Radip City [Shooting Star Ranch Heliport], South Dakota, US (36 mi / 57 km E)
				2SD5		Sturgis [Sturgis Heliport], South Dakota, US (37 mi / 60 km NE)