Question: Navail Air Facility Adak was closed in 1997, but reopened as what airport that is the farthest west for the entire United States?
Context: Marine Helicopter Squadron One (HMX-1) is a United States Marine Corps helicopter squadron responsible for the transportation of the President of the United States, Vice President, Cabinet members and other VIPs.  A Marine helicopter which has the President aboard uses the call sign "Marine One".  In addition to its VIP transport role, it is also tasked with operational test and evaluation of new flight systems for Marine Corps helicopters.  Nicknamed "Nighthawks", they are headquartered at Marine Corps Air Facility Quantico, Virginia, and maintain detachments at Joint Base Anacostia–Bolling in Washington, D.C. and Joint Base Andrews Naval Air Facility in Maryland. Naval Auxiliary Air Facility Hyannis was a United States Navy facility located in Hyannis, Massachusetts operational from 1942 to 1945.  It existed as an auxiliary air facility of Naval Air Station Quonset Point. Naval Air Facility Adak (IATA: ADK, ICAO: PADK, FAA LID: ADK) , was a United States Navy airport located west of Adak, on Adak Island in the U.S. state of Alaska.  After its closure in 1997, it was reopened as Adak Airport.  The facility was designated a National Historic Landmark for its role in World War II, although most of its elements from that period have been demolished or lie in ruins. Naval Auxiliary Air Facility Nantucket was a United States Navy facility located in Nantucket, Massachusetts operational from 1942 to 1945.  It existed as an auxiliary air facility of Naval Air Station Quonset Point. Aleutian Region School District (ARSD; REAA #8) is a school district headquartered in Anchorage, Alaska.  It serves the Aleutian Islands west of Unalaska, including Adak, Atka, and Nikolski.  ARSD is the school district in the United States that is both the farthest east and the farthest west.  Several uninhabited islands, including Attu and Shemya, are within the district's physical boundaries. Adak , formerly Adak Station, (Unangax̂: "Adaax") is a town located on Adak Island, in the Aleutians West Census Area, Alaska, United States.  At the 2010 census the population was 326.  It is the westernmost municipality in the United States and the southernmost city in Alaska.  (See Extreme points of the United States.)  The city is the former location of the Adak Army Base and Adak Naval Operating Base, NAVFAC Adak.  There are no radio stations within 200 mi of Adak; radio can be received in Adak only through satellite or shortwave receivers. Naval Auxiliary Air Facility New Bedford was a United States Navy facility located in New Bedford, Massachusetts operational from 1942 to 1945.  It existed as an auxiliary air facility of Naval Air Station Quonset Point. Naval Auxiliary Air Facility Beverly was a United States Navy facility located in Beverly, Massachusetts operational from 1942 to 1945.  It existed as an auxiliary air facility of Naval Air Station Squantum. Adak Airport (IATA: ADK, ICAO: PADK, FAA LID: ADK) is a state owned, public use airport located west of Adak, on Adak Island in the U.S. state of Alaska.  The airport is the farthest west for the entire United States at 176.64W. Naval Air Facility Washington is a United States Naval Reserve air facility.  It was merged in 2009 with Andrews Air Force Base to create Joint Base Andrews in accordance with law passed by Congress under the 2005 Base Realignment and Closure Commission (BRAC).  Although they share parallel runways, NAF Washington was originally considered a separate air installations and maintained a separate Navy/Marine Corps–unique FAA airfield identifier of NSF and an ICAO airfield identifier of KNSF.  Pursuant to BRAC 2005, these separate airfield identifiers were discontinued on 29 March 2009 and all flight operations in and out of NAF Washington use the Andrews AFB airfield identifiers of ADW and KADW as appropriate.
Answer: Adak Airport