Incident #75 Sighting Report — Snake River Canyon, Idaho, August 13, 1947

This document details Incident #75, a sighting of an unidentified aerial object that occurred on August 13, 1947, near Twin Falls, Idaho. The primary witnesses were a farmer and his two sons, aged eight and ten. According to the report, the witnesses observed a sky-blue, disk-shaped object, described as an 'inverted pie plate' or 'oblong broad rimmed hat with low crown,' traveling east to west through the Snake River Canyon. The object was estimated to be 20 feet in diameter and 10 feet thick, moving at approximately 1,000 mph at an altitude of 75 feet above the canyon floor. The witnesses reported a 'swishing sound' and observed a 'red tubular fiery glow' emanating from the device. Notably, the farmer claimed that as the object passed over trees, they 'spun around on top as if they were in a vacuum.' The incident was reported in the local 'Times News' newspaper on August 15, 1947, which included sketches provided by the witnesses. The Air Materiel Command investigated the report and, in conjunction with a deduction by Dr. Hynek, concluded that the object was likely a rapidly moving atmospheric eddy. The document includes various administrative notes, including a checklist of the sighting details and correspondence between the FBI and the Air Materiel Command regarding the newspaper account and the witnesses' sketches. The report is classified as 'unexplained' in some indices but ultimately categorized as an atmospheric phenomenon by the evaluating agency.