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Archive case record

E of Lake Kosh, Konona, Wisc., December 1957

Date of account
1957-12
Location
E of Lake Kosh, Konona, Wisc.
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 口 Was Balloon 10 December 1957 E of Lake Kosh,Konona, Wisc。 BX Probobly Balloon 口 Possibly Balloon 3.DATE-TIME GROUP 4. TYPE OF OBSERVATION Ground-Radar 口 Was Aircraft Local Ground-Visual 口 Probabiy Aircraft 11/0105 to-0135z D AirVisual D Air-lntercept Radar 口 Possibly Aircraft GMT- 5.PHOTOS 6.SOURCE 口 Was Astronomical Y.. 口 Probably Astronomical Civilian Police Officer 口 Possibly Astronomical 7.LENGTH OF OBSERVATION 8.NUMBER OP OBJECTS 9.COURSE 口 Other 口 In sufficiont Data for Evaluation 口 Unknown 30 minutes euo hovering 10. BRIEP SUMMARY OF SIGHTING 11.COMMENTS One object, round,color yellowish, Balloon released from La Grosse light kept flashing on and off. WX at l200 midnight.Winds approx 40-45 MPH. Distance to observer approx ll0 miles. This should bring balloon over the area at time of sighting. AT1C FORM 329 (REV 26 SEP 52

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