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Archive case record

Rapid City, South Dakota, August 1958

Date of account
1958-08
Location
Rapid City, South Dakota
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 Was Balloon 4 August 1958 Rapid City.South Dakota Probably Balloon 口 Possibly Balloon 3.DATE-TIME GROUP 4.TYPE OF OBSERVATION αkround-Visual D Ground-Rodar 口 Was Aircraft .Local 四 Probobly Aircraft 04/1624Z DAirVisuol Air-Intercept Radar Possibly Aircraft GMT 5.·PHOTOS 6.SOURCE Was Astronomical aYes Probobly Astronomical 池No 口 Possibly Astronomical Military & Civilian 7.LENGTH OF.OBSERVATION 8.NUMBER OF OBJECTS9.COURSE 口 Other. 口口 Insufficient Data for Evaluation Unknown 5-10 secs one South 10. BRIEF SUMMARY OF SIGHTING 11.COMMENTS Round or disc shaped obj, size of Possibly turning a/c with sun basketball,white.One observer rptd in proper position to highlight halo effect surrounding obj. Obj maneuver. traveled straight & level & disappeared instantaneously to south. ATIC FORM 329 (REV 26 SEP 52)

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