ICAO		IATA		Other		Location
				CD81		Walden [Owl Ridge Heliport], Colorado, US (142 mi / 228 km S)
				98CO		Greeley [NCMC Heliport], Colorado, US (142 mi / 228 km S)
				SD70		Keystone [Rushmore Heliport], South Dakota, US (142 mi / 229 km NE)
				SD62		Keystone [Borglum Heliport], South Dakota, US (142 mi / 229 km NE)
				8WY6		Ten Sleep [Lazy T Ranch Airport], Wyoming, US (142 mi / 229 km NW)
				SD42		Keystone [Rushmore Heliport], South Dakota, US (143 mi / 229 km NE)
				2CO3		Milliken [Jackrabbit Strip], Colorado, US (143 mi / 230 km S)
				SD18		Rapid City [Keystone Heliport], South Dakota, US (143 mi / 230 km NE)
				33NE		Hay Springs [Orr Ranch Airport], Nebraska, US (144 mi / 231 km E)
				ROMO		Rocky Mountain National Park [Rocky Mountain NP], Colorado, US (144 mi / 232 km S)
				WY55		Sundance [Taylor Field], Wyoming, US (144 mi / 232 km N)
KDWX				DWX		Dixon, Wyoming, US (144 mi / 232 km SW)
				CO81		Johnstown [Fought'N'Won Ultralight Flightpark], Colorado, US (145 mi / 233 km S)
				86CO		Berthoud [Lazy W Airport], Colorado, US (145 mi / 234 km S)
				6CO6		Berthoud [Skywagon Ranch Airport], Colorado, US (145 mi / 234 km S)
				7CO7		Johnstown [Frontier Helicopters Heliport], Colorado, US (146 mi / 234 km S)
				CO66		Greeley [AJC Airport], Colorado, US (146 mi / 235 km S)
				WY00		Ten Sleep [Red Reflet Ranch Airport], Wyoming, US (148 mi / 237 km NW)
				34CD		Allenspark [Elk Park Ranch Airport], Colorado, US (148 mi / 238 km S)
				CD39		Berthoud [Pond's Field], Colorado, US (148 mi / 239 km S)