ICAO		IATA		Other		Location
				WY54		Riverton [Riverton Hospital Heliport], Wyoming, US (142 mi / 228 km SW)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (142 mi / 228 km SE)
KRIW		RIW		RIW		Riverton [Central Wyoming Regional], Wyoming, US (143 mi / 230 km SW)
				WY24		Riverton [Riverton Memorial Hospital Heliport], Wyoming, US (143 mi / 231 km SW)
				WY53		Four Corners [Moburg Aero Airport], Wyoming, US (144 mi / 232 km E)
				80S		Lavina, Montana, US (145 mi / 234 km NW)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (149 mi / 239 km E)
				SD33		Camp Crook [Sky Ranch For Boys Airport], South Dakota, US (149 mi / 240 km E)
				MT74		Ekalaka [Sikorski Ranch Airport], Montana, US (150 mi / 242 km NE)
				8OA5		Camp Crook [Muni], South Dakota, US (151 mi / 243 km E)
				3MT3		Ryegate [Three Cross Ranch Airport], Montana, US (152 mi / 245 km NW)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (153 mi / 246 km E)
KSPF		SPF		SPF		Spearfish [Black Hills-Clyde Ice Field], South Dakota, US (154 mi / 248 km E)
				SD90		Spearfish [Mitchells Strip], South Dakota, US (154 mi / 248 km E)
				WY66		Douglas [Chamberlain Brothers Ranch Airport], Wyoming, US (154 mi / 248 km SE)
				8U0		Ryegate, Montana, US (155 mi / 249 km NW)
KDGW		DGW		DGW		Douglas [Converse County Airport], Wyoming, US (157 mi / 252 km SE)
				8U6		Terry, Montana, US (157 mi / 252 km NE)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (158 mi / 254 km E)
				SD76		Camp Crook [Tennant Ranch Airport], South Dakota, US (160 mi / 257 km NE)