Project 10073 Records — Colorado Springs, Colorado, June 1966

This document collection contains a series of Project 10073 records and associated correspondence from June 1966 regarding multiple Unidentified Aerial Phenomena (UAP) sightings in the vicinity of Colorado Springs, Colorado. The reports detail various observations made by civilians, including children and an orthopedic orderly. The objects were described in diverse ways, ranging from 'pea-shaped' or 'round' objects with 'bluish-green' or 'blue-white' lights to 'cigar-shaped' objects. Some observers reported the objects moving in straight lines or back and forth, while others described them as stationary. The Air Force investigation, led by Major Edward L. Stricker at Peterson Field, consistently sought to identify these phenomena through standard procedures, including the use of FTD Form 164 for follow-up data. The official conclusions for these sightings were largely dismissive, attributing the observations to known entities such as satellite passes (specifically ECHO I, II, and Pegasus weather satellites), aircraft navigation lights, or optical illusions caused by the reflection of the moon off local reservoirs. In several instances, the investigation noted that the data provided was insufficient for a firm evaluation, or that the reports were unreliable due to the age of the observers or potential 'vivid imagination.' The correspondence included in the file shows that the Air Force attempted to contact witnesses for further information, but in some cases, the letters were returned as 'Addressee Unknown,' leading to the closure of those specific files. The documents reflect the standard operating procedure for Project Blue Book and related Air Force intelligence efforts during the mid-1960s, emphasizing the categorization of sightings into explainable phenomena.