Pentagon files reveal mystery black triangle near sensitive US site in UFO report
Agents report unusual sighting
An FBI observation report said two federal agents were stationed at a post several miles west of the location when they were alerted to a possible sighting. They detected what the report called a thermally elevated aerial object and ran for a better vantage point.
The agents estimated the object was nine to 15 feet across, six to nine feet deep and one to two feet thick. One agent said it was hotter than the surrounding air, with no visible exhaust gases. The article’s opening description compares the object’s speed to that of a fighter jet, but the report details provided do not give a measured speed.
Rapid climb and descent
According to the FBI memorandum, the unidentified craft rose vertically for about 10 seconds. It reached an estimated 200 to 300 feet above the local ridge line. The report said the object then made a smooth banking turn and descended close to the terrain into a canyon drainage. That descent took approximately two to three seconds.
Images included in report
The FBI document contained several pictures that appear to show an object representing the reported sighting placed over the landscape. The account does not establish what the object was.
Key points
- Two federal agents reported seeing an object near a sensitive US site earlier this year.
- The agents estimated the object’s wingspan at nine to 15 feet.
- The report described a roughly 10-second vertical ascent and a two-to-three-second descent.
- The FBI document included images depicting an object over the landscape.