Area 48 is the place where the most secret files and artefacts are stored. Nobody knows where the base is build and how you can get there. Area 51 is publicly known, Area 48 is only known by the agents and their officers who work there. They are the ones who work on paranormal cases, investigate alien encounters search for dangerous mutants and time travellers. The files and artefacts are protected by the Keeper of the archives. In 2013 the CIA publicly acknowledged the existence of Area 51 for the first time, declassifying documents detailing the history and purpose of base. Area 48 is still not acknowledged by the US Government and their agencies.