ICAO		IATA		Other		Location
KECS		ECS		ECS		Newcastle [Mondell Field], Wyoming, US (146 mi / 235 km E)
				WY27		Douglas [Wagonhound Airport], Wyoming, US (149 mi / 239 km SE)
				MT05		Ekalaka [Laird Ranch Airport], Montana, US (150 mi / 242 km NE)
				WY53		Four Corners [Moburg Aero Airport], Wyoming, US (152 mi / 245 km E)
				1MT5		Miles City [Holy Rosary Hospital Heliport], Montana, US (154 mi / 247 km NE)
KMLS		MLS		MLS		Miles City [Frank Wiley Field], Montana, US (154 mi / 249 km NE)
				MT29		Miles City [Sunday Creek Airpark], Montana, US (158 mi / 255 km NE)
				80S		Lavina, Montana, US (159 mi / 255 km NW)
KRPX		RPX		RPX		Roundup, Montana, US (159 mi / 256 km NW)
				WY44		Mule Creek Junction [Robbers Roost Ranch Airport], Wyoming, US (161 mi / 259 km SE)
				WY16		Medicine Bow [Robbins Airport], Wyoming, US (161 mi / 259 km SE)
				3MT3		Ryegate [Three Cross Ranch Airport], Montana, US (161 mi / 259 km NW)
				WY30		Dubois [Kinky Creek Divide Airport], Wyoming, US (162 mi / 261 km SW)
				MT45		Ekalaka [Castleberry Airport], Montana, US (165 mi / 266 km NE)
				YELL		Yellowstone National Park [Yellowstone NP], Wyoming, US (165 mi / 266 km W)
				97M		Ekalaka, Montana, US (165 mi / 266 km NE)
KEFC				EFC		Belle Fourche [Muni], South Dakota, US (165 mi / 266 km E)
				8U0		Ryegate, Montana, US (166 mi / 267 km NW)
				SD91		Spearfish [Star Aviation Number 1 Heliport], South Dakota, US (166 mi / 268 km E)
				WY17		Medicine Bow [Ellis Ranch Airport], Wyoming, US (167 mi / 269 km S)