ROCK SPRINGS, WYOMINGDecember 1953

Insufficient Data

Summary

On December 29, 1953, near Rock Springs, Wyoming, a military air observer reported one object observed for 7 minutes. The object changed color from red to white like heated metal and was estimated at 1500 to 2000 mph. Two objects in formation flew four miles apart with no trail or exhaust. An Air Force C-47 aircraft observed the objects disappearing by going north and another going straight up. The observation lasted 7 minutes. The Air Force concluded there was insufficient data for evaluation.

Reported location

ROCK SPRINGS, WYOMING

Date of incident

December 1953

State / country

WY / US

Page count

3 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 20

Original case file scans

Original case file · scanned by NARAPage 1 of 3

View transcribed text

1. DATE - TIME GROUP
29 DEC 53  30/0426Z

3. SOURCE
MILITARY
AIR VISUAL

4. NUMBER OF OBJECTS
one

5. LENGTH OF OBSERVATION
7 mins

6. TYPE OF OBSERVATION
air visual

7. COURSE
-

8. PHOTOS
Yes
No

9. PHYSICAL EVIDENCE
Yes
No

5. LOCATION
ROCK SPRINGS, WYOMING

10. CONCLUSION
INSUFFICIENT DATA FOR EVALUATION

Duration and speed in conflict. Possible that other a/c was the cause, however data presented is too vague for firm eval.

11. BRIEF SUMMARY AND ANALYSIS

Obj changed color from red to white like heated. Might have been a blinking light. Speed estimated at 1500 to 2,000 mph. Two objs in formation four miles apart. No trail or exhaust. Air Visual from C-47, objs disappeared by going North and other by going straight up. Observed for 7 mins.

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Source: National Archives Catalog · NAID 28957187