Yellowstone National Park, WyomingJuly 1949

Insufficient Data

Summary

On July 8, 1949, between about 6:30 and 7:00 a.m., a civilian man and his wife saw objects while fishing on Shoshone Lake in Yellowstone National Park, Wyoming. The man's written account is in the file. The Air Force conclusion was "other (birds)." The report became part of Project 10073, the Air Force's official record for unidentified flying object reports.

The man said his attention was drawn by a sound like the whir of duck wings. Looking up about 800 to 1,000 feet, he saw eight objects that appeared round and about 20 feet across. He said they looked like bright metal and were not in formation. He compared them to a flock of blackbirds, some above and some below each other. There was no smoke, no exhaust, and no motor sound.

He said the objects went up and down and moved very fast. One turned completely over while passing among the others without touching them. The morning was clear and sunny. The Air Force analysis noted that sunlight reflecting off the wet bodies of birds can make them look like a very large object at a much greater distance, especially at dusk and dawn.

Reported location

Yellowstone National Park, Wyoming

Date of incident

July 1949

State / country

WY / US

Page count

5 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 6

Original case file scans

Original case file · scanned by NARAPage 1 of 5

View transcribed text

| be Par V9 VAI vw) PrOvIous editions of this form may be used, En Es a LE FPN RIES rope :
PROJECT 10073 RECORD
i EE ——— EE ~ ——————————————————————————————
1. DATE - TIME GROUP ~ % LOCATION :
| | a Jul 4S 09/02302 Yellowstone National Park, Wyoming
© (3. SOURCE 10. CONCLUSION |
| Civiliea : Other (BIRDS)
[4 NUNOER OF OBJECTS
| Eight | |
[ ;5 LENGTH OF OGSERVATION |11. BRIEF SUMMARY AND ANALYSIS |
Not Reported Observers attention was drawn to eight objects by a sound like
| - the whir of duck wings. The eight objects appeared to be round |
4 @ EAT TY R——— and about 20 ft in diameter. They were not in a formation, : |
~ { Ground-Visual put reminded the observe: of bleckbirds in a broup. There was i
BS; course o smoke or exhaust, Estimated altitude was 800 to 1LO0 ft. |
| Not Reported |
1 6. PHOTOS Reflection of the sun's light off the wet bodies of birds often RY
: gives the appearance of a wery large object at a much greater “uh
{| O Yes distance from the cbserver than they actually are, especially Wy
| is during the periods of dusk and dawn. aN
4 3 PHYSICAL EVIDENCE ~~ |
b!
1 O Yes : |
: Ci Ne : \
rom '
~ FTD sep 63 0-329 (TDE) previous editions of this form may be used. SEE T

/ 5

Use ← → keys to navigate · scans hosted by the U.S. National Archives

Source: National Archives Catalog · NAID 28935847