The Sighting
At 9:45 p.m. on September 27, 2000, three men—two contractors and a stonemason—were returning from a hunting trip near Challis, Idaho. As they prepared dinner, they felt as though a “heavy blanket” hung over their heads, and chills ran down the backs of their necks. When they aimed a flashlight, powered by AA batteries, at the sky, they saw a dark, flat triangular object hovering above their camp at an altitude of about 60 meters.
The object made no sound, and the men cried out, “Holy...” Its upper point appeared rounded, with a flat edge, while the underside had a texture like “suede,” in shades of brown, gray, and gold. When the flashlight beam hit it, the object “lit up”: three linear lights, one at each corner, about 3 meters in diameter, and a central red light about 6 meters in diameter, flashing once per second.
At the same time, the men heard a “deep, loud sound” like a powerful engine. The triangular object then continued up a narrow valley, from an elevation of 2,040 meters to 2,990 meters. It moved slowly, like an ice floe sliding across ice, without any thunder or smell of fuel. As it neared an altitude of 120–130 meters, it fell completely silent, and the object disappeared over the horizon.
Background and Context
Triangle sightings are frequently recorded in reports of unidentified anomalous phenomena (UAP). The Challis triangle had several distinctive features: enormous size, with sides about 75 meters long; shallow curves; a faint glow around it; and no physical effects on its surroundings, such as wind, odor, or vibration. The three witnesses, who worked as contractors and stonemasons, were described as having sharp eyesight and the ability to report technical details precisely.
Why It’s Interesting
The report brings together several unusual elements: a large triangle moving slowly up a valley, a faint glow, and a deep sound followed by silence. The witnesses also said they reported the incident to several government offices, suggesting that they took it seriously and were open to an investigation. Although the report has not been verified, it adds another layer of complexity to the study of triangular objects and could serve as a starting point for scientific or military inquiry.
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The report is based solely on the testimony of three men; no visual documentation is available.
