ICAO		IATA		Other		Location
KRPX		RPX		RPX		Roundup, Montana, US (2 mi / 3 km N)
				80S		Lavina, Montana, US (22 mi / 35 km SW)
				36MT		Grass Range [16 Ranch Airport], Montana, US (27 mi / 44 km NW)
				19MT		Grass Range [N Bar Ranch Airport], Montana, US (33 mi / 53 km NW)
				1MT2		Billings [Skyrider Ultralight Flightpark], Montana, US (35 mi / 56 km S)
				8U0		Ryegate, Montana, US (35 mi / 57 km W)
				7S2		Winnett, Montana, US (38 mi / 60 km N)
				PPNM		Pompeys Pillar National Monument [Pompeys Pillar NM], Montana, US (40 mi / 65 km SE)
				35MT		Billings [Haynes Ranch Airport], Montana, US (41 mi / 66 km S)
				03MT		Billings [Billings Flying Service Heliport], Montana, US (44 mi / 71 km S)
KBIL		BIL		BIL		Billings [Billings Logan Intl], Montana, US (44 mi / 71 km S)
KMNG						Billings [Montana ARNG Heliport], Montana, US (44 mi / 72 km S)
				08MT		Grass Range [Matovich Airport], Montana, US (45 mi / 72 km N)
				MT25		Billings [St. Vincent Healthcare Heliport], Montana, US (45 mi / 73 km S)
				3MT3		Ryegate [Three Cross Ranch Airport], Montana, US (45 mi / 73 km SW)
				11MT		Shawmut [Lammers Airport], Montana, US (45 mi / 73 km W)
				MT55		Billings [Billings Clinic Heliport], Montana, US (45 mi / 73 km S)
				1MT9		Billings [Wilcox Airport], Montana, US (46 mi / 74 km S)
				MT40		Billings [Husky Ranch Airport], Montana, US (46 mi / 75 km S)
				MT56		Billings [Flying Dog Airpark], Montana, US (50 mi / 80 km S)