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Archive case record

Thurmon, Colorado, May 1955

Date of account
1955-05
Location
Thurmon, Colorado
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

PROJECT 10073 RECORD CARD 1.DATE 2.LOCATION 12. CONCLUSIONS 11 May 1955 Thurmon,_Colorado 口 Was Balloon 3.DATE-TIME GROUP 口 Probobly Balloon 4.TYPE OF OBSERVATION 口 Possibly Balloon Local Ground-Visual 12/0106Z 口Ground-Rodar 口 Was Aircraft GMT. XAirVisuol 口 Probably Aircraft 5.PHOTOS Air-intercept Radar 口 Possibly Aircraft 6.SOURCE DYes 口 Was Astronomical XiNo Civilian (Commercial Pilo 口 Probobly Astronomical 7.LENGTH OF OBSERVATION P Possibly Astronomicol 8.NUMBER OF OBJECTS 9. COURSE 口,Other unknown 口 Insufficiont Data for Evaluotion one 口 Unknown 10. BRIEF SUMMARY OF SIGHTING Southeast Aircraft of unidentified type obser- 11.COMMENTS ved by American Air Lines pilot flying Immediate identification of 20,oo0 feet over the Sange de Cristo atbbject observed by commercial range. There were no vapor trails or pilot as being a type of uncec other distinguishing characteristics ognized a/c pr

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