Project 10073 Record: UFO Sighting at Finland AFS, Minnesota

This document collection details a series of UFO sightings reported in early September 1966 near Finland AFS, Minnesota. The initial incident occurred on the evening of September 5, 1966, when a civilian reported a strange 'flying object' to the station. Military personnel at Finland AFS subsequently observed a light in the sky that appeared to change colors between red, green, and white. The object was described as stationary in the west, settling beneath the horizon after approximately three hours. Radar technicians at the site initially reported no returns, but later detected a target on the FPS 90 scope that varied in range from 13 to 54 miles and remained on a 270-degree azimuth. Two F-89 aircraft were scrambled from Duluth Air Base to investigate; while they were directed toward the target, the radar return reportedly 'merged' with the aircraft, and the pilots did not visually confirm the object. Subsequent reports from the following evening, September 7, involved additional sightings by a civilian near Grand Marais and an Airman Second Class at Finland AFS, who described a 'round light' that vanished after two minutes. Intelligence officers, including Lt. Theron J. Sumner and F/L G. B. Smith, characterized the reports as vague, contradictory, and confused. Official evaluations by the Foreign Technology Division (FTD) concluded that the sightings were likely attributable to stars or temperature inversions, while the radar returns were likely the result of anomalous propagation or ground clutter. The FTD noted that the merging of the interceptors with the radar target suggested the target was not a material object at that location.