ICAO		IATA		Other		Location
				MD32		Fort Detrick (Frederick) [Fort Detrick Helipad], Maryland, US (40 mi / 65 km NW)
				VA60		Unison [Flying Horse Farm Balloonport], Virginia, US (40 mi / 65 km W)
				MD13		Towson [Black & Decker/Parking Lot 2 Heliport], Maryland, US (40 mi / 65 km NE)
				4MD9		Owings Mills [Worthington Valley Airport], Maryland, US (41 mi / 66 km N)
				41VA		Stafford [Stafford Hospital Center Heliport], Virginia, US (41 mi / 66 km SW)
				MD84		Newburg [Nyce Airport], Maryland, US (41 mi / 66 km S)
KNDY		DGN		NDY		Dahlgren [Dahlgren NSF Airport], Virginia, US (41 mi / 67 km S)
				7MD9		Tilghman [Tilghman Whipp Airport], Maryland, US (41 mi / 67 km E)
				1VA4		Marshall [Evergreen Heliport], Virginia, US (42 mi / 67 km W)
				90MD		Baltimore [Medstar Franklin Heliport], Maryland, US (42 mi / 67 km NE)
				3VA1		Warrenton [The Meadows Airport], Virginia, US (42 mi / 68 km W)
				MD64		St. Michaels [Asplundh Airport], Maryland, US (43 mi / 68 km E)
				14VA		Hillsboro [Krens Farm Airport], Virginia, US (43 mi / 69 km NW)
KRMN				RMN		Stafford [Stafford Regional], Virginia, US (43 mi / 69 km SW)
KHWY				HWY		Warrenton [Warrenton/Fauquier Airport], Virginia, US (43 mi / 70 km SW)
				MD76		Westminster [Carroll Hospital Center Heliport], Maryland, US (43 mi / 70 km N)
KMTN		MTN		MTN		Baltimore [Martin State Airport], Maryland, US (43 mi / 70 km NE)
				3MD7		Baltimore [Green Terrace Heliport], Maryland, US (43 mi / 70 km NE)
				53VA		Midland [Horse Feathers Airport], Virginia, US (44 mi / 70 km SW)
				8VA3		Warrenton [Fauquier Hospital Emergency Transport Heliport], Virginia, US (44 mi / 71 km W)