ICAO		IATA		Other		Location
				GC0067		Keystone [Mt. Rushmore Helipad], South Dakota, US (141 mi / 226 km NE)
				WY35		Worland [Washakie Medical Center Heliport], Wyoming, US (141 mi / 227 km NW)
				6CO1		Wellington [Burnham Field], Colorado, US (142 mi / 228 km S)
				WY14		Hulett [Ipy Ranch Airport], Wyoming, US (142 mi / 228 km N)
				SD70		Keystone [Rushmore Heliport], South Dakota, US (142 mi / 228 km NE)
				SD62		Keystone [Borglum Heliport], South Dakota, US (142 mi / 229 km NE)
				SD18		Rapid City [Keystone Heliport], South Dakota, US (142 mi / 229 km NE)
				SD42		Keystone [Rushmore Heliport], South Dakota, US (142 mi / 229 km NE)
				CO67		Carr [Big View Airport], Colorado, US (143 mi / 230 km S)
				3SD5		Lead [Dilligaf Heliport], South Dakota, US (143 mi / 230 km NE)
				2CD9		Laporte [Kellogg Airstrip], Colorado, US (145 mi / 234 km S)
				W43		Hulett [Muni], Wyoming, US (146 mi / 235 km NE)
KDWX				DWX		Dixon, Wyoming, US (147 mi / 237 km SW)
				48CO		Nunn [Shaull Farm Airstrip], Colorado, US (148 mi / 238 km S)
				1CD1		Nunn [Reed Intl], Colorado, US (148 mi / 239 km S)
				1CO3		Nunn [Bellmore Farms Airport], Colorado, US (149 mi / 239 km S)
				5CO5		Carr [Black Hollow Heliport], Colorado, US (149 mi / 239 km S)
KHSG				HSG		Thermopolis [Hot Springs County Airport], Wyoming, US (149 mi / 240 km NW)
				CO86		Fort Collins [John Galt Heliport], Colorado, US (149 mi / 240 km S)
				CD02		Steamboat Springs [Skyote Airport], Colorado, US (150 mi / 242 km SW)