Project 10073 Records — Denver, Colorado, October 1967

This document contains a collection of records and correspondence related to two separate UFO sightings reported in Denver, Colorado, in October 1967, processed under Project 10073 of Project Blue Book. The first incident occurred on October 6, 1967, involving three objects described as reddish-orange, slightly florescent, and moving in a definite triangular formation at a high speed, faster than any jet. The observer, a retired Navy Lieutenant Commander, reported a humming sound after the objects passed. The official conclusion for this sighting was a 'possible balloon (hot air).' The second incident occurred on October 9, 1967, involving approximately 17 objects in a V-formation, described as white, low-intensity lights. The observer, a student, reported that the objects made no sound and disappeared suddenly after 10 seconds. The Air Force investigation into this second sighting concluded that the objects were likely birds, noting that overcast weather conditions may have contributed to their unusual appearance. The document includes internal Air Force correspondence between the Foreign Technology Division and the Disaster Preparedness Officer at Lowry Air Force Base, highlighting discrepancies in the initial reports and the subsequent efforts to gather more detailed information from the witnesses using FTD Form 164. The records include technical information questionnaires completed by the witnesses, providing details on their observations, including the shape, color, duration, and flight paths of the objects, as well as their own personal assessments of what they witnessed.