ICAO		IATA		Other		Location
				04MT		Cohagen [Pluhar Airport], Montana, US (176 mi / 284 km N)
				36MT		Grass Range [16 Ranch Airport], Montana, US (177 mi / 285 km NW)
KBHK				BHK		Baker [Muni], Montana, US (177 mi / 285 km NE)
				7S2		Winnett, Montana, US (178 mi / 286 km N)
				6V0		Edgemont [Muni], South Dakota, US (179 mi / 287 km SE)
				11MT		Shawmut [Lammers Airport], Montana, US (179 mi / 288 km NW)
				SD18		Rapid City [Keystone Heliport], South Dakota, US (179 mi / 289 km E)
				9D2		Buffalo [Harding County Airport], South Dakota, US (180 mi / 289 km NE)
				WY30		Dubois [Kinky Creek Divide Airport], Wyoming, US (180 mi / 289 km SW)
KLSK		LSK		LSK		Lusk [Muni], Wyoming, US (180 mi / 289 km SE)
				GC0067		Keystone [Mt. Rushmore Helipad], South Dakota, US (180 mi / 289 km E)
				WY17		Medicine Bow [Ellis Ranch Airport], Wyoming, US (180 mi / 290 km S)
				6SD4		Edgemont [Xpoint Airport], South Dakota, US (180 mi / 290 km SE)
				SD62		Keystone [Borglum Heliport], South Dakota, US (181 mi / 291 km E)
				SD70		Keystone [Rushmore Heliport], South Dakota, US (181 mi / 291 km E)
				SD42		Keystone [Rushmore Heliport], South Dakota, US (181 mi / 291 km E)
				19MT		Grass Range [N Bar Ranch Airport], Montana, US (182 mi / 293 km NW)
				SD25		Piedmont [Infinity Landing Airport], South Dakota, US (184 mi / 296 km E)
				26SD		Radip City [Shooting Star Ranch Heliport], South Dakota, US (185 mi / 298 km E)
				WICA		Wind Cave National Park [Wind Cave NP], South Dakota, US (186 mi / 300 km E)