Report of Investigation: Unconventional Aircraft (Project Sign) - Rogue River, Oregon, 24 May 1949

This report details an investigation into a sighting of an unconventional aircraft near the Rogue River in Oregon on 24 May 1949. The investigation was conducted by Special Agent Charles E. Brooks of the 19th District OSI, with assistance from Special Agent Thomas H. Kelley. Multiple witnesses, including personnel from the Ames Laboratory at Moffett Field, reported observing a silvery, circular, or oval-shaped object at approximately 5000 feet altitude. The object was described as having a triangular fin and moving at a speed greater than a jet plane, without making any sound or banking during turns. Witnesses were interviewed in both Ione and Moffett Field, California, and their statements were collected as part of the official record. The investigation included extensive checks with military radar installations, including the Sixth Army, the Twelfth Naval District, and Air Force Early Warning Radar Stations in the Bay Area. All these agencies confirmed they possessed no radar installations in California or Oregon capable of detecting such an object at the reported location and time. Additionally, weather data from the U.S. Weather Bureau was consulted to rule out meteorological phenomena. The report also addresses separate, earlier sightings of 'flying saucers' over Bend, Oregon, in March 1949, which were attributed to pieces of roofing paper or similar debris caught in whirlwinds. The investigation into the Rogue River incident remained pending until further information could be gathered, though the lack of physical evidence or radar confirmation suggested no immediate threat or identifiable conventional aircraft. The document includes signed statements from witnesses and correspondence between OSI districts regarding the ongoing inquiry. The final status of the investigation was marked as closed, with the conclusion that the sightings did not correspond to any known military or conventional aircraft activity in the region.