I have been researching the history of the Groom Lake facility for more than 20 years. My sources have included:
Books (you have to be careful with this one, many contain erroneous information)
Articles (an even more risky source of information, but occasionally provides a few tidbits)
Internet (separating the wheat from the chaff is a Herculean effort, but there are some surprisingly good nuggets to be found)
Photos and satellite images (aircraft and facilities, many pictures never before seen outside of program circles, good source for chronology of base
facilities development)
Documents (thousands of pages of material from unclassified to declassified formerly Top Secret, including material on programs, accidents, personnel,
and facilities. I have over 200 pages of Area 51 Standard Operating Procedures alone!)
Artifacts (program/unit patches, coffee mugs, pins, challenge coins, plaques, aircraft parts, aircraft models, and an original Area 51 Security Force
badge.)
Interviews (oral history interviews with key personnel from the facility: test pilots, engineers, crew chiefs, loadmasters, air traffic controllers,
security personnel, and base commanders)
From these sources, I piece together the puzzle. Technically, all of this information is unclassified, but it can be assembled in such a way as to
reveal more than "they" want you to know. Security personnel call this the "mosaic theory" of intelligence.


