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Archive case record

Alberton, Montana, May 1956

Date of account
1956-05
Location
Alberton, Montana
Source
uap_archive
Record updated
2026-10-10

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Record summary

Project Blue Book case file indexed from National Archives metadata; page-level review pending.

Published source text

Read the available text below. Archive transcriptions may contain OCR errors; later context is labelled separately. A recorded claim is not a finding that it happened.

Source page 1

Source text · mention only

PROJECT10073RECORDCARD 1.DATE 2.LOCATION 12. CONCLUSIONS 口 Wos Balloon 30 May 1956 Alberton, Montana 口 Probably Balioon 风X Possibly Balloon 3.DATE-TIME GROUP 4.TYPE OF OBSERVATION Local xkGround-Visual Ground-Radar 口 Was Aircraft 口 Probobly Aircroft 31/0359Z GMT. D AirVisual D Air-lntercept Radar 口 Possibly Aircraft 5.PHOTOS 6.SOURCE 口 Was Astronomical Y.s 口 Probably Astronomical ONKX Civilian 口 Possibly Astronomical 7.LENGTH OF OBSERVATION 8.NUMBER OF OBJECTS 9.COURSE 口 Other. 口 Insufficient Data for Evaluation two descending 口 Unknown 47 minutes 10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS Two objects both the size & shape of Received by AF Form ll2. A check parachutes, sighted in the West (anglle by this hq w/ADc Wx Service re- of elevation unknown),estimated vealed that four balloons our ot altitude of 40,000 feet.Color of a Vernallis,Calif.were in the white magnesium flare-changed to

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