Cheyenne, WyomingAugust 1956

Insufficient Data

Summary

On August 26, 1956, a person near Cheyenne, Wyoming, spotted a round silver object about 15 feet in diameter traveling northwest at high speed during dusk. The observer saw a bright flash or reflection that drew attention to the object. It moved in a level flight path and disappeared behind a nearby hill after about five or six seconds of observation. As the object passed over an abandoned car body, a puff of smoke seemed to emerge from the car. When the observer reached the vehicle, the rear window was found completely shattered.

An Air Force investigator interviewed the witness on August 28. The observer was located approximately one mile north of Round-Top Reservoir and about 100 yards south of a state road. Weather conditions at the time were clear, with surface wind from the northeast at seven miles per hour and fifty-mile visibility. A meteorologist from the U.S. Weather Bureau stated there were no meteorological or astronomical conditions that might explain the sighting. The control tower operator at the local airport reported no aircraft in the area at the time.

The file shows the window damage was examined, with pieces found in various sizes, but the Air Force concluded the case as "probably a meteor" and stated the object was not responsible for the window damage. The conclusion appears without further explanation or evidence provided in the available case materials.

The full case file, scanned on 12 pages as held by the National Archives, is reproduced below.

Reported location

Cheyenne, Wyoming

Date of incident

August 1956

State / country

WY / US

Page count

12 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 26

Original case file scans

Original case file · scanned by NARAPage 1 of 12

View transcribed text

re at PROJECT 10073 RECORD CARD :
1. DATE 2. LOCATION 12. CONCLUSIONS
4 O Wos Bolloen
26 August 19586 Chayvenne, Wyoming =] Brobebly a?
3. DATE-TIME GROUP 4 TYPE OF OBSERVATION PUNY W— |
0 Wes Aircraft
GMT 27/01157 : 0 AirVisvel O Air-Intercept Rodor D Possibly Aireroft
5. PHO O Was Astronomical fa |
xO Yes © §F Gad OX Probably rere dO )
0 NeAW ( ole ay ivilian O Possibly Astronomicel’ as
7. LENGTH OF .OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE BD Pr cmagmapeg——
O Insufficient Dore for Evaluation
p % 0 Unknown
2 Or Six s=conds one northwesterl |
10, BRIEF SUMMARY OF SIGHTING 11. COMMENTS |
One round silver object, approximately Source stated that he defini-
15 ft in diameter. Object appeared smod¢th tely heldeved ohat the obj was
Object brought to attention of observe: a "flying saucer’ & came fm
by bright flash or reflection. Obj outer space, Case concluded
appeared to travel in a Northwest dire¢- as meteor and object was in no
tion at a very high rate of speed on a way responsible for the
iavel flight path. Obj observed visually shattering of th2 car window,
for 5 or 5 meconds % disappeared out o
sight behind hill, Obj passed over an
abandoned car body and according to
observer a puff of smoke appeared to
emerge fm car body. When observer
reacned the car he found that rear
ATIC FORM 329 (REV 26 SEP 83) /1LJOW Oud o=en completely shattered.
$0 : ; :
Se LN ;
: . < ; . g 4

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Source: National Archives Catalog · NAID 28967177