ICAO		IATA		Other		Location
				WY23		Sussex [Iberlin Strip], Wyoming, US (64 mi / 103 km SW)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (65 mi / 105 km E)
		BDX		00F		Broadus, Montana, US (66 mi / 107 km N)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (66 mi / 107 km E)
KSPF		SPF		SPF		Spearfish [Black Hills-Clyde Ice Field], South Dakota, US (68 mi / 109 km E)
				SD90		Spearfish [Mitchells Strip], South Dakota, US (68 mi / 109 km E)
				1M6		Ashland [Stevens Ranch Airport], Montana, US (71 mi / 115 km NW)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (71 mi / 115 km E)
				WY09		Dull Center (SW Clareton) [Sherwin Field Number 1 Airport], Wyoming, US (72 mi / 117 km S)
KBYG		BYG		BYG		Buffalo [Johnson County Airport], Wyoming, US (78 mi / 126 km W)
				WY18		Midwest [Iberlin Ranch Number 2 Airport], Wyoming, US (80 mi / 129 km SW)
				84WY		Douglas [Moore Ranch Airport], Wyoming, US (81 mi / 130 km S)
				MT05		Ekalaka [Laird Ranch Airport], Montana, US (81 mi / 131 km N)
				WY01		Bill [Dilts Ranch Airport], Wyoming, US (81 mi / 131 km S)
				2SD5		Sturgis [Sturgis Heliport], South Dakota, US (82 mi / 132 km E)
KPIN						Piney Creek, Wyoming, US (82 mi / 132 km W)
				SD26		Sturgis [Mike Jacob Sturgis Heliport], South Dakota, US (85 mi / 136 km E)
				JECA		Jewel Cave National Monument [Jewel Cave NM], South Dakota, US (86 mi / 139 km SE)
				2SD0		Nemo [Paradise Valley Airport], South Dakota, US (87 mi / 140 km E)
				SD35		Sturgis [Bruch Airfield], South Dakota, US (87 mi / 140 km E)