Area 51 request filed in 2005, the CIA publicly acknowledged the existence of the base for the first time, declassifying documents detailing the history and purpose of Area 51. Area 51 is located in the southern portion of Nevada in the western United States, north-northwest of Las Vegas. Situated at its center, on the southern shore of Groom Lake, is a large military airfield. The site was acquired by the United States Air Force in 1955, primarily for the flight testing of the Lockheed U-2 aircraft. The area around Area 51, including the small town of Rachel on the "Extraterrestrial Highway", is
Pennsylvania Route 51 Pennsylvania Route 51 Pennsylvania Route 51 (PA 51) is a major state highway in Western Pennsylvania. It runs for from Uniontown to the Ohio state line near Darlington, where it connects with Ohio State Route 14. Route 51 is the termination point for Pennsylvania Route 43, Pennsylvania Route 48 and Pennsylvania Route 88. Century III Mall is located on this road in West Mifflin. The Route is a major connection from Uniontown and the rest of Fayette County to Pittsburgh. The highway is four-lane highway south of Pittsburgh as it passes through Pittsburgh's South Hills, but narrows to a two-lane