Bangor International Airport (IATA: BGR, ICAO: KBGR, FAA LID: BGR) is a joint civil-military public airport on the west side of the city of Bangor, in Penobscot County, Maine, United States. Owned and operated by the City of Bangor, the airport has a single runway measuring 11,440 by 200 ft (3,487 by 61 m). Formerly a military installation known as Dow Air Force Base, Bangor International Airport remains home to the 101st Air Refueling Wing of the Maine Air National Guard, although most of the Air Force's aircraft and personnel left in the late 1960s. BGR covers 2,079 acres (841 ha) of land.