Declassified UFO / UAP Document
Project 10073 Record Card — Denver, Colorado, 23 June 1954
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AI-Generated Summary
A civilian in Denver reported a glowing, swept-wing object on 23 June 1954. Military investigators identified the object as a B-36 aircraft based on air traffic control data.
On 23 June 1954, at approximately 0330Z, a civilian witness in Denver, Colorado, reported observing an unidentified aerial object while in her backyard. The witness described the object as a light green, glowing craft resembling a modern aircraft with swept-back wings. She estimated the object was at an altitude of 30,000 feet and observed it for approximately 30 seconds as it moved south, appearing to follow the curvature of the earth. The witness noted that the object was above the clouds and made no sound. The report was processed by the Lowry Flight Service in accordance with Air Force Regulation 200-2. Following an investigation, the Operations Officer at Lowry Flight Service concluded that the sighting was likely a B-36 aircraft. This conclusion was supported by data from the Denver Air Route Traffic Control (ARTC), which had a position report for an aircraft flying from Casper, Wyoming, to Amarillo, Texas. The ARTC report indicated that a B-36 was over the Denver area at 26,000 feet at 0228M, which the investigating officer determined was the object seen by the witness.
LIKE MODERN AIRCRAFT SWEPT BACK WINGS. LARGE IN CENTER TAPERED ON ENDS APPEARED ABOUT TWELVE INCHES LONG FM POSITION ON GROUND
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Official Assessment
It is believed the observer saw the aircraft reported by Denver ARTC.
The sighting was likely a B-36 aircraft that was in the area at the time of the observation, as reported by Denver ARTC.