Project Blue Book Case File
Great Falls AFB, MontanaFebruary 1953
Summary
On February 1, 1953, near Great Falls Air Force Base in Montana, a bright white light like a star appeared in the north, turned to the east, and disappeared to the southeast. The object traveled very fast. Two separate sightings occurred. The first lasted approximately five minutes and was observed without aids. The second sighting involved a 29th Air Division blockhouse gate house observer, A/1C Donald Monaco, at Great Falls AFB. The witness had limited aircraft identification training. A second witness, Lieutenant Wayne M. Fonnesbeck, was reliable with interceptor training. Weather conditions were 5,000 feet broken clouds at 22,222 feet altitude, 25 degrees Fahrenheit, 25-degree dew point, and 12-knot south-west wind. The Air Force concluded the sighting was unidentified due to lack of conflicting data with the evaluation.
Reported location
Great Falls AFB, Montana
Date of incident
February 1953
State / country
MT / US
Page count
3 scanned pages
USAF evaluation
unidentified
Microfilm
T1206, Roll 17