What mountain range is Area 51 located in?
Groom Range:  The Groom Range is situated 26.6 miles north of the dry Groom Lake. Area 51:  According to the Central Intelligence Agency (CIA), the correct names for the facility are Homey Airport (ICAO: KXTA) and Groom Lake, though the name "Area 51" was used in a CIA document from the Vietnam War.
Groom Range