Project 10073 Record: Unidentified Flying Objects (UFO) - Cheyenne, Wyoming, August 1965

This document is a collection of reports regarding Unidentified Flying Objects (UFOs) observed in the vicinity of Cheyenne, Wyoming, during August 1965. The correspondence, issued by the 90th Strategic Missile Wing (SAC) on September 20, 1965, serves as an addendum to a previous report from August 6, 1965. It details several distinct sightings reported by military personnel and civilians. One specific incident, recorded on August 31, 1965, involved a single object observed for 15 minutes. The witness described a round, barrel-sized object with a sharply outlined ring of light, displaying red, white, blue, and green colors. The object maneuvered to the West, then East, and finally North before disappearing. The report notes that no sound was heard and that the object was at an altitude of approximately 20,000 feet. Other sightings included objects observed by a civilian guard at the Sioux Army Depot, a Staff Sergeant and his neighbors, and a Geodetic Survey Team using a theodolite. While some objects were identified as weather balloons or the planet Jupiter, others remained unexplained. The document includes maps plotting the locations of these sightings and emphasizes that the weather during these events was generally clear with occasional clouds. The official conclusion for the primary incident described in the Project 10073 record is that there was insufficient data for evaluation.