ICAO		IATA		Other		Location
				WY07		Douglas [Hardy Ranch Airport], Wyoming, US (161 mi / 258 km S)
				SD25		Piedmont [Infinity Landing Airport], South Dakota, US (161 mi / 258 km SE)
				SD04		Opal [Keystone Xl Opal Heliport], South Dakota, US (161 mi / 259 km E)
				16MT		Roberts [Bangart Field], Montana, US (161 mi / 259 km W)
				10WY		Kaycee [Willow Creek Ranch Airport], Wyoming, US (161 mi / 259 km S)
KSDY		SDY		SDY		Sidney [Sidney-Richland Regional], Montana, US (162 mi / 261 km NE)
				36MT		Grass Range [16 Ranch Airport], Montana, US (163 mi / 263 km NW)
				6V5		Bison [Muni], South Dakota, US (164 mi / 263 km E)
				6S3		Columbus [Woltermann Memorial Airport], Montana, US (165 mi / 265 km W)
				JECA		Jewel Cave National Monument [Jewel Cave NM], South Dakota, US (165 mi / 266 km SE)
KDIK		DIK		DIK		Dickinson [Dickinson/Theodore Roosevelt Regional], North Dakota, US (166 mi / 267 km NE)
				37S		Fort Peck, Montana, US (166 mi / 267 km N)
				MT80		Wolf Point [Vine Airport], Montana, US (166 mi / 267 km N)
				0SD9		Custer [Crazy Horse Heliport], South Dakota, US (166 mi / 267 km SE)
				0SD5		Custer [The Fort Heliport], South Dakota, US (167 mi / 269 km SE)
				SD18		Rapid City [Keystone Heliport], South Dakota, US (168 mi / 270 km SE)
				26SD		Radip City [Shooting Star Ranch Heliport], South Dakota, US (168 mi / 270 km SE)
				SD72		Opal [Vig Ranch Airfield], South Dakota, US (168 mi / 270 km E)
				44MT		Columbus [S&L Edwards Airport], Montana, US (168 mi / 271 km W)
				SD40		Rapid City [Rapid City Regional Hospital Heliport], South Dakota, US (169 mi / 272 km SE)