ICAO		IATA		Other		Location
KHEF		MNZ		HEF		Washington [Manassas Regional/Harry P Davis Field], District of Columbia, US (32 mi / 52 km SW)
				6MD6		La Plata [UM Charles Regional Medical Center Heliport], Maryland, US (32 mi / 52 km S)
				44MD		Baltimore [Union Memorial Hospital Heliport], Maryland, US (32 mi / 52 km NE)
				MD83		La Plata [Ty-Ti-To Airport], Maryland, US (33 mi / 52 km S)
				2W2		Westminster [Clearview Airpark], Maryland, US (33 mi / 53 km N)
				06MD		Baltimore [Johns Hopkins Bayview Medical Center Heliport], Maryland, US (33 mi / 53 km NE)
				MD68		Stevenson [Berg's Field Heliport], Maryland, US (33 mi / 54 km NE)
				8MD2		Baltimore [Montebello Filtration Plant Heliport], Maryland, US (34 mi / 54 km NE)
				MD05		Welcome [Finagin Airfield], Maryland, US (34 mi / 54 km S)
				MD74		Unionville [Good Neighbor Farm Airport], Maryland, US (34 mi / 55 km N)
KFDK		FDK		FDK		Frederick [Muni], Maryland, US (35 mi / 56 km NW)
				MD95		Finksburg [Reservoir Airport], Maryland, US (35 mi / 56 km N)
				5MD1		Brooklandville [Brooklandville Heliport], Maryland, US (35 mi / 56 km NE)
				45VA		Haymarket [Uva Health/Haymarket Medical Center Heliport], Virginia, US (35 mi / 56 km W)
				MD27		Eagle Harbor [Chalk Point Generating Sta Heliport], Maryland, US (35 mi / 57 km SE)
				08MD		Towson [St. Joseph Hospital Heliport], Maryland, US (35 mi / 57 km NE)
				2VG6		Manassas [Rychlk Heliport], Virginia, US (36 mi / 58 km SW)
				7MD3		Frederick [Frederick Health Hospital Heliport], Maryland, US (36 mi / 58 km NW)
				8MD5		Libertytown [Flying H Farm Airport], Maryland, US (36 mi / 59 km N)
				4MD5		Prince Frederick [Hunting Creek Farm Airport], Maryland, US (36 mi / 59 km SE)