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Case FileNARA NAID 28989230 · T1206 Roll 40

Project Blue Book Case File

Denver, ColoradoSeptember 1960

Insufficient Data

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from Denver, Colorado in September 1960. The full case file (4 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 40.

Reported location

Denver, Colorado

Date of incident

September 1960

State / country

CO / US

Page count

4 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 40

Original case file scans

Original case file · scanned by NARAPage 1 of 4
Transcribed text
.
CL PROJECT 10073 RECORD CARD
§ 1. DATE 2. LOCATION 12. CONCLUSIONS
20 Sep 60 Denvar, Colorado O Wes Belloan
0 Probably Bolloon
g ——————————————————————————————————— a — ——— ———————— -
3. DATETIME GI0UP 4. TYPE OF OBSERVATION —|D Possibly Belleen
A ARR ANN A A SE Re : Es 0 Was Aivcroft
ete nt Inch? N Sovervieey £5 Draund Rohe 0 Probobly Aircraft
TL TRE cove Sad Aad 0 AisVisuol 0 Air-Intercept Rador D Possibly Aircroft
re TET =
5. PHOTOS 8. SOURCE 0) Was Astronomicol
Q Yes Ris as 0 Probobly Astrenemicol
3 Ne Civilian 0 Possibly Astronomical
7. LENGTH OF O83ZRYATION 8. MUMBER OF OBJECTS | 9. COURSE 0 Other Tie
i 1 Insufficiant Dota for Evaluation
% l or 2 nin ! one up and down 0 Unknown
J ER EEE TY =r y= S ee — I —————
k 10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
: Very brilliant, nearly round orange object, This sighting categorized as insufficien
Ff ;ize of baseball, trailing flame, moved up data. Information is limited, No estimale
i and down. Disappeared instantaneously to W. of distance [rom observar, Cbject appeal ad
§ and disappeared at the same location, yc
; moved up and down. How much?? No follow
i up request for additional information
& was sent and at this date (1962) the
i request for information seems inadvisable.
k ATIC FORM 329 (REV 25 SEP 52)
‘
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Source: National Archives Catalog · NAID 28989230

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