Cheyenne, Wyoming, July 1957
- Date of account
- 1957-07
- Location
- Cheyenne, Wyoming
- Source
- uap_archive
- Record updated
- 2026-10-10
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 onlyPROJECT10073RECORDCARD !.DATE 2.LOCATION 12.CONCLUSIONS 口 Was Balloon 16Ju1y1957 口 Probably Balloon Chevenne wyoming 口 Possibly Bailoon 3.DATE-TIME GROUP 4.TYPE OF OBSERVATION 1157_MST 口 WosAireraft Locai KD Ground-Visuol OGround-Radar 口 ProbabiyAireroft 16/1857Z DAir-Visuoi Air-lntercoptRadar 口 Possibiy Airerait GMT 5.PHOTOS 6.SOURCE 口 Was Astronomicai Yes a ProbablyAstronomical Civilian 口 Possibiy Astronomical 7.LENGTH OF OBSERVATION 8.NUMBER OF OBJECTS 9.COURSE korh.rContrails D Insufficianr Data for Evaluation 口 Unknown 5 minutes one WtoE 10.BRIEP SUMMARYOF SIGHTING 11.COMMEN7S Vapor trail arc developed as a very Nothing unusual about this; faint & narrow trail.Pattern showed traiis often seen with plane a full l80 dgr turn & formed in about not visible due to high altitude. 12 seconds. No obj visibie. Crosses developed progressively with formation of the trail.Within l/2 mile a seco
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