Project 10073 Record: UFO Observation, 3 December 1967

On December 3, 1967, at approximately 0750Z, a civilian observer located one mile northeast of Buckley Air National Guard Base in Colorado reported a sighting of an unidentified aerial phenomenon. The observer described a brilliant blue flash of light that was of such intensity that it caused temporary blindness. The duration of the event was estimated at two to three seconds. The observer attempted to investigate the source by moving through their house to the front yard to check a transformer, but the light had already disappeared by the time they arrived. The object was estimated to be 75 to 100 feet in diameter. Official military records from Lowry Air Force Base indicated that there were no aircraft or balloons in the area at the time of the sighting. The weather was reported as clear with high scattered clouds and a temperature of 33 degrees. The Air Force Foreign Technology Division, under Project 10073, concluded that there was insufficient data to evaluate the incident. A follow-up AF Form 117 was sent to the observer to gather more information, but it was never returned. The report was subsequently forwarded to Dr. Condon at the University of Colorado for further review.