Naval Air Station Fallon or NAS Fallon (IATA: NFL, ICAO: KNFL, FAA LID: NFL) is the United States Navy's premier air-to-air and air-to-ground training facility. It is located southeast of the city of Fallon in western Nevada in the United States. Since 1996, it has been home to the Naval Fighter Weapons School (TOPGUN), and the surrounding area contains 240,000 acres (97,000 ha) of bombing and electronic warfare ranges.