Project 10073 Records and Incoming Messages — Pueblo, Colorado, August 1965

This document contains a collection of Project 10073 records and incoming Air Force messages regarding two separate UFO sightings reported in Pueblo, Colorado, in August 1965. The first incident occurred on August 11, 1965, involving a witness who reported three objects—one large and two smaller ones—that appeared to move around each other. The witness described them as round, ball-like objects flashing red, green, and white. The objects were estimated to be at an altitude of 3,000 feet and a range of 20 miles, moving slowly toward the West and Southwest. The second incident occurred on August 13, 1965, involving a different witness who reported a single, round, blinking light that was reddish-brown and blue in color. This object was observed on the Northwest horizon, moving Northeast. In both cases, the Air Force conducted preliminary analyses involving local towers, the NORAD Combat Operations Center, SPADATS, and local law enforcement. The investigating officers, including Captains Donald Dehoff and G.E. Smith, concluded that the sightings were likely astronomical in nature, specifically identifying the objects as the stars Altair and Arcturus. The reports highlight the difficulty in obtaining clear data, noting that the witnesses were vague, difficult to interview, and had questionable or poor reliability. The Air Force concluded that the reported movements were likely optical illusions or the result of atmospheric phenomena, such as temperature inversions, and that there was no evidence to suggest the presence of satellites, debris, or other anomalous objects.