Documents / Official release
This is a Secret History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach of the Central Intelligence Agency, published in 1992. It gives a history of the CIA's manned overhead reconnaissance program from 1954 to 1974, covering the development and operation of the U-2 and the A-12 OXCART aircraft. It covers overflights of the Soviet Union, the 1960 downing of Francis Gary Powers, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."
From the source:Release of 2026-06-12 This CIA History Staff document chronicles the complete history of the U-2 and OXCART (A-12) high-altitude reconnaissance aircraft programs from 1954 to 1974, detailing their development, operations over the Soviet Union and other targets worldwide, the famous downing of Francis Gary Powers in 1960, organizational reforms following that incident, and the eventual transfer of operations from CIA to Air Force control. A more redacted version of this document has been available on CIA's public website.
“Hill”15 pages
See, et NOFORN Appendix D 337 APPENDIX D U-2 Overflights of the Soviet Union, 4 July 1954-1 May 1960 Date Mission Pilot Airfield Unit Payload Route 4 July 1956 2013 Stockman Wiesbaden A A-2 East Germany, Poland, Minsk, Leningrad, Estonia, Latvia, Poland 5 July 1956 2014 Vito Wiesbaden A A-2 East Germany, Warsaw, Minsk, Moscow, Estonia, Latvia, Lithuania, Poland 9 July 1956 2020 Knutson Wiesbaden A A-2 East Germany, Poland, Minsk, Poland 9 July 1956 2021 Overstreet Wiesbaden A A-2 Czechoslovakia, Vienna, Hungary, L'vov, Kiev, Minsk, Poland • 10-July 1956 2024 Dunaway Wiesbaden A A-2 Poland, Kishinev, Kerch•. Sevastopol', Simferopol'. Odessa. Romania. Hungary 20 November 1956 4016 Powers Adana B A-2 Iran, Yerevan, Baku. Astara, Caucasus 18 March 1957 4020 Cherbonneaux Adana B Sys-V Soviet border to Afghanistan, Azerbaijan, Armenia, Georgia 20 June 1957 6005 Rand Eielson C B Khaylyulya. Ust'-Kamchatsk, Kozyrevsk, Karaganskiy-Ostrov 5 August 1957 4035 Edens Lahore B B Afghanistan, Tashkent, Tyuratam, Kazalinsk, Aral Sea 11 August 1957 4039 McMurray Lahore B B Alma-Ata. Ust' -Kamenogorsk, Sinkiang 21 August 1957 4045 Snider Lahore B A-2 Novokuznetsk, Tomsk 21 August 1957 4048 Jones Lahore B A-2 Lake Balkhash, Karaganda, Omsk. Alma-Ata Saa,et
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 406 pages are in the text index: search them above, or from the library's search.