ICAO		IATA		Other		Location
				8F6		Murdo [Muni], South Dakota, US (87 mi / 140 km E)
				2NE4		Gordon [Spring Lake Airport], Nebraska, US (87 mi / 140 km S)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (87 mi / 140 km NW)
				WY53		Four Corners [Moburg Aero Airport], Wyoming, US (89 mi / 143 km W)
				24NE		Lakeside [Orr Airport], Nebraska, US (90 mi / 145 km S)
				33NE		Hay Springs [Orr Ranch Airport], Nebraska, US (90 mi / 145 km S)
				0NE1		Ashby [Runner Landing Area Airport], Nebraska, US (92 mi / 148 km S)
				WY44		Mule Creek Junction [Robbers Roost Ranch Airport], Wyoming, US (92 mi / 148 km W)
				SD04		Opal [Keystone Xl Opal Heliport], South Dakota, US (92 mi / 149 km N)
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (95 mi / 153 km W)
				D07		Faith [Muni], South Dakota, US (95 mi / 153 km N)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (101 mi / 163 km NW)
				3NE2		Hemingford [Phillips Airport (Private)], Nebraska, US (102 mi / 164 km S)
				SD14		Draper [Valburg Ranch Airport], South Dakota, US (102 mi / 164 km E)
				SD57		Pierre [W L Thompson Airport], South Dakota, US (103 mi / 166 km NE)
				SD97		Vivian [Oller Airport], South Dakota, US (105 mi / 168 km E)
				SD48		Faith [Blomberg 42 Ranch Airport (Private)], South Dakota, US (105 mi / 169 km N)
				84D		Eagle Butte [Cheyenne Eagle Butte Airport], South Dakota, US (107 mi / 172 km NE)
				04SD		Eagle Butte [Cheyenne River Health Center Heliport], South Dakota, US (108 mi / 173 km NE)
				9NE3		Hyannis [Davis Ranch Airport], Nebraska, US (109 mi / 175 km S)