ICAO		IATA		Other		Location
				MT50		Alzada [Lanning Ranch Airport], Montana, US (65 mi / 105 km NE)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (65 mi / 105 km SE)
				WY56		Hulett [Pierce Ranch Airport], Wyoming, US (66 mi / 107 km NE)
				WY07		Douglas [Hardy Ranch Airport], Wyoming, US (67 mi / 107 km S)
KPIN						Piney Creek, Wyoming, US (67 mi / 107 km W)
				WY53		Four Corners [Moburg Aero Airport], Wyoming, US (70 mi / 112 km E)
				(MT59)		Hammond [Gardner Airport], Montana, US (75 mi / 121 km NE)
				1M6		Ashland [Stevens Ranch Airport], Montana, US (76 mi / 123 km NW)
(KBDX)		(BDX)				Broadus, Montana, US (80 mi / 128 km N)
KSHR		SHR		SHR		Sheridan [Sheridan County Airport], Wyoming, US (80 mi / 129 km NW)
				9WY0		Sheridan [Sheridan Memorial Hospital Heliport], Wyoming, US (81 mi / 131 km NW)
		BDX		00F		Broadus, Montana, US (82 mi / 132 km N)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (85 mi / 137 km E)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (86 mi / 138 km E)
				SD90		Spearfish [Mitchells Strip], South Dakota, US (86 mi / 138 km E)
KSPF		SPF		SPF		Spearfish [Black Hills-Clyde Ice Field], South Dakota, US (86 mi / 139 km E)
				WY44		Mule Creek Junction [Robbers Roost Ranch Airport], Wyoming, US (87 mi / 139 km SE)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (87 mi / 140 km E)
				10WY		Kaycee [Willow Creek Ranch Airport], Wyoming, US (89 mi / 143 km SW)
				JECA		Jewel Cave National Monument [Jewel Cave NM], South Dakota, US (92 mi / 148 km SE)