CREST (CIA Records Search Tool) at the National Archives in College Park, Maryland, houses nearly 13 million pages of declassified Agency documents.
Notes on verification
Corroborated by National Archives and CIA official sources citing the same ~13 million page figure; consistent across multiple independent references.
Sources
- Secret Writing: CIA's Oldest Classified Documents - CIA (cia.gov)
- https://www.archives.gov/research/electronic-records/cia-crest (archives.gov)
- https://www.governmentattic.org/docs/CIA_CREST.html (governmentattic.org)