Story highlights The CIA officially acknowledges Area 51, long a fixation for conspiracy theorists, in documents 
 
 The area, 125 northwest of Las Vegas, was a testing ground for Cold War aerial surveillance 
 
 Document release could be just the beginning of Area 51 information, expert says 
 
 Area 51 has long been a topic of fascination for conspiracy theorists and paranormal enthusiasts, but newly released CIA documents officially acknowledge the site and suggest that the area served a far less remarkable purpose than many had supposed. 
 
 According to these reports, which include a map of the base's location in Nevada, Area 51 was merely a testing site for the government's U-2 and OXCART aerial surveillance programs. The U-2 program conducted surveillance around the world, including over the Soviet Union during the Cold War. 
 
 Area 51, about 125 miles northwest of Las Vegas, is synonymous in popular culture with government secrecy, and many have theorized that it holds the answer to one of the greatest questions plaguing mankind: Are we really alone in the universe? 
 
 But the newly released documents make no mention of alien autopsy rooms or spaceship parking lots. 
 
 This information will be disappointing to some, who have come to view the area as a mecca of sorts for alien encounters. 
 
 For these true believers, the existence of alien spacecraft at Area 51, and the government's attempts to cover up their trace, is irrefutable and has been since reports of Unidentified Flying Objects -- or UFOs -- began to emerge from the Nevada desert in the middle part of the 20th century. 
 
 The map and other documents were released in response to a Freedom of Information Act request submitted by Jeffrey T. Richelson, a senior fellow at the National Security Archives, in 2005. 
 
 The map and other documents were released in response to a Freedom of Information Act request submitted by Jeffrey T. Richelson, a senior fellow at the National Security Archives. 
 
 Richelson submitted the request as part of his continuing study of aerial surveillance programs and told CNN that he was not given an explanation of why the new documents were less redacted than previous versions declassified by the agency. 
 
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 He points out, however, that the location of Area 51 was not a particularly well-kept secret. Its location appears in books on aerial surveillance and is widely referenced in popular culture. 
 
 In fact, the map that was released in the CIA documents mirrors the one that appears after a simple Google Maps search for "Area 51." 
 
 Area 51 has also been referenced in government documents in the past, though this newest release is the first that acknowledges its existence and location in a purposeful way. 
 
 Richelson told CNN he believes this could signal a dramatic change in the government's willingness to declassify information about the famed base, meaning even more information could come out about Area 51 in the future. 
 
 The release of these reports seem to put the theories about aliens and flying saucers to rest for the time being, although they may not be enough to silence the true believers. 
 
 At least they still have Roswell, right? ||||| WASHINGTON — Newly declassified government documents made public Thursday are shedding some of the official mystery surrounding Nevada’s role in developing spy planes of the Cold War. 
 
 A history of the U-2 reconnaissance program written by CIA officials in 1992 and released this summer to a national security institute contains official acknowledgement and several mentions of Area 51, the remote desert base 90 miles north of Las Vegas that the government once denied even existed. 
 
 It includes the story of when CIA project director Richard Bissell and Air Force officer Col. Osmund Ritland in April 1955 first flew over an old airstrip by the salt flat named Groom Lake. The Beechcraft plane was piloted by Tony LeVier, Lockheed’s chief test pilot. 
 
 On closer inspection they agreed it “would make an ideal site for testing the U-2 and training its pilots,” according to the history. The lightweight aircraft was being built by Lockheed at its highly secure “Skunk Works” plant in Burbank, Calif. 
 
 Allen Dulles, the director of Central Intelligence, and Adm. Lewis Strauss, the chairman of the Atomic Energy Commission, got President Dwight Eisnenhower to sign off on adding the strip, “known by its map designation as Area 51,” to what was then called the Nevada Test Site. 
 
 “To make the facility in the middle of nowhere sound more attractive to his workers, (Skunk Works founder) Kelly Johnson called it the Paradise Ranch, which was soon shortened to the Ranch,” according to the document. 
 
 Three months later, by July 1955, “the base was ready and Agency, Air Force and Lockheed personnel began moving in.” 
 
 On July 25, the first prototype was delivered, wrapped in tarpaulins, “its long slender wings and tail assembly removed.” It was flown to Groom Lake aboard a C-124, and mechanics spent six days readying the craft for its first flight on Aug. 4. 
 
 Subsequent high-altitude testing of the U-2 soon led to an unexpected side effect, “a tremendous increase in reports of unidentified flying objects” that added much to Area 51 lore. 
 
 That the Nevada installation was a development and staging area for the high-altitude spy plane and other aircraft that flew secret missions over the Soviet Union, China and other U.S. targets now is commonly known, having previously been revealed in several histories of the era. 
 
 But up to now, mentions of the base in officially released documents were rare and “probably inadvertent,” said Jeffrey Richelson, senior fellow of the National Security Archive, a research institute that contains a major library of declassified U.S. documents. 
 
 Releasing information on Area 51 now “is clearly a conscious decision to acknowledge the name, the location rather than play pretend about the secrecy,” Richelson said. 
 
 The 407-page history, “The Central Intelligence Agency and Overhead Reconnaissance,” was released to Richelson in June in response to a Freedom of Information Act request he filed in 2005. A heavily redacted version was published in 1998. 
 
 The history also discusses the site’s role in Oxcart, the CIA code-named program that produced the Lockheed A-12 spy plane, the nation’s first stealth aircraft. 
 
 T.D. Barnes, 75, of Henderson and Roger Andersen, 83, of Las Vegas, both worked on development of the A-12 at Area 51 in the 1960s. 
 
 “There’s not much really new here but they are officially confirming what has been previously speculated,” said Barnes, who worked on a radar project in Beatty that measured the velocity of the record-breaking, rocket-powered X-15 in 1964. 
 
 “We would secretly track the flights for the CIA,” he said. 
 
 A CIA contractor, Barnes arrived at Area 51 in 1968 as a radar expert to put the finishing touches on the A-12. He said most of the CIA’s “black operations” in Nevada used code names for the projects but not the facility. 
 
 He said other unofficial names used for the facility include Dreamland, Home Base, Watertown Strip, Groom Lake and Homey Airport. 
 
 “The U-2 guys called it Watertown because that was the hometown of the CIA director at the time,” Barnes said, referring to Dulles. 
 
 Barnes said Area 51 is part of the Nellis Air Force range operations area. The restricted airspace around it is known by military pilots as “the box” or “the container.” 
 
 Andersen, an Air Force captain recruited by the CIA, said the stories behind Area 51 “generally were known by those of us who worked there but not to the rest of the world.” 
 
 While the CIA had been protective of Area 51 information for so long, Andersen said he sensed a shift within the past five to seven years. As a result, he and former Area 51 personnel were invited to a CIA “family day” at headquarters in Langley, Va. 
 
 Richelson, the National Security Archive senior fellow, said he had no idea why the CIA decided to open up on Area 51 at this time. Researchers hope it is a sign the agency might be forthcoming about details of other once-secret Nevada programs, such as development of the F-117 Stealth jet and the use of captured Soviet MiGs to train U.S. pilots in air-to-air combat.
– It's a milestone of sorts for conspiracy theorists: The CIA has for the first time declassified documents that detail the existence of Area 51 in Nevada, reports the Las Vegas Review-Journal. The documents, obtained in a Freedom of Information Act request by a national security institute at George Washington University, explain that Area 51 got its start in 1955 because the government needed a place to test U-2 spy planes. Aliens in crashed spaceships are nowhere to be found in the documents. But here's one weird detail that is: The government initially called it "Paradise Ranch" to make the "facility in the middle of nowhere" sound more alluring to workers. The documents include a CIA map of the site, which is pretty much the same one that has long been available in a Google Maps search for "Area 51," notes CNN. So what's the big deal here? It's "clearly a conscious decision to acknowledge the name, the location rather than play pretend about the secrecy,” says the researcher who filed the FOIA request, Jeffrey Richelson. It should pave the way for the release of even more information about the site, he adds. You can dig into the 400 pages of documents here.