Project 10073 Record Card — Denver, Colorado, September 1960

This document consists of two Project 10073 record cards and associated teletype reports detailing UFO sightings in Denver, Colorado, in September 1960. The primary witness, a 31-year-old housewife from Derby, Colorado, reported two distinct incidents. In the first, on September 20, 1960, she observed a brilliant, nearly round orange object, approximately the size of a baseball, which featured a trailing flame. The object moved up and down before disappearing instantaneously to the west. The observation lasted one to two minutes. The second incident occurred on September 25, 1960, when the witness observed what appeared to be a pink cloud that transformed into an object with a streak. This object, which later appeared dark grey, was observed for approximately 15 minutes. The witness noted that the object disappeared and reappeared eight or nine times. During the second sighting, the witness attempted to use a small telescope, but was unable to sight the object. Captain B. W. Ryland, an Airborne Officer at Lowry AFB, investigated the reports. He noted that the witness seemed very reliable and mentioned that she had other witnesses who also observed the object. Despite this, the official conclusion for both reports was that there was insufficient data for evaluation. The reports indicate that the weather was clear during both sightings and that no radar contact was made. The military authorities determined that no follow-up request for additional information was advisable, effectively closing the file on these specific incidents.