Project 10073 Record — UFO Observation, 31 July 1968, Boise, Idaho

This document is a Project Blue Book record concerning a UFO sighting reported in Boise, Idaho, on 31 July 1968. The primary witness, a civilian, reported seeing a red light, approximately the size of a grapefruit, moving in a westerly direction at an elevation of about 15 degrees. The witness, who was driving, stopped to observe the object, which then made a 90-degree left turn and began to ascend at a 3-5 degree angle. The witness called for another patrol car to meet them, and both officers watched the object until it disappeared from sight after approximately 2-3 minutes. The investigation was conducted by SSgt Theodore C. Ackley of the 67th Security Police Squadron. The report includes interviews with various officials, including personnel from the U.S. Weather Bureau, the FAA, and the Idaho Air National Guard. Weather reports indicated clear skies with a smoke layer from a range fire in the Weiser, Idaho area. The official conclusion reached by the Aerial Phenomena Office was that the object was 'Probable (HOT AIR BALLOON),' specifically suggesting it was a 'garmet bag' hot air balloon. The report includes the original questionnaire completed by the witness, which details their observations, including the object's color, size, and movement patterns.