I don`t know if this is new but I found some pretty good Mount Weather Satellite Images:www.globalsecurity.org...
Check this page out they got some pretty good images of Military bases.
I saw a 60 minutes report which was filmed in a secret underground facility.
all the reporter would say is that it was just west of washington.
This facility they showed was built in case of nuclear attack, it had a huge hospital and canteen, and enough space for hundreds of people, it was an
underground city.