3.5 Mi S Of Arvada, ColoradoAugust 1958

Unidentified

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from 3.5 Mi S Of Arvada, Colorado in August 1958. 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 33.

Reported location

3.5 Mi S Of Arvada, Colorado

Date of incident

August 1958

State / country

CO / US

Page count

4 scanned pages

USAF evaluation

unidentified

Microfilm

T1206, Roll 33

Original case file scans

Original case file · scanned by NARAPage 1 of 4

Transcribed text

PR CTE FRR. P RR I ET TE ETT TE SOLE Em
LJ] \ 5 :
v
, :
v
| PROJECT 10073 RECORD CARD i
2. LOCATION 12. CONCLUSIONS Bn
O Wes Bolloon :
| : 5 32 Mi S of Arvada, Colorad - ay th i
'ME GROUP 4. TYPE OF OBSERVATION WY. — | §
V / 2130,2230,2315 ® O Was Aircraft
G6 Ground- Visual O Ground-Rodor O Probably Aircraft
| | /0::30-0530-0615Z O Air Visual O Air-Intercept Radar |D Possibly Aircraft |
i . © |BX Was Astronomical L201
O Yes O Probably Astronomical
: 20 No Civilian ODO Possibly Astronomicol
» OF.OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE CEE RTE ne,
N to S O Insufficient Date for Evaluation
0 Unknown
Secs three E to W
IMMARY OF SIGHTING 11. COMMENTS | |
ong green-iridescent objs, Description of objs is of |
vhaust-like fire, whining sound, fireball, or bolide,
‘d in straight path & suddenly
-ared,
|
|
|
| |
|
{
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!
|
3129 (REV 26 SEP 52) i
EJ
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bi 0c RA S55 hs he RR a a sn » i

/ 4

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Source: National Archives Catalog · NAID 28979327

Connected across the archive

Places

3.5 Mi S Of Arvada, CO Colorado

Agencies

United States Air Force

Dates

1958 1958-08-01