Twin Falls, Idaho UFO Sighting (August 13, 1947) — FBI Files

Background

On August 13, 1947, in Twin Falls, Idaho, U.S. government investigators recorded an unidentified-object incident later released to the public on May 8, 2026 as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE). The incident is one of the first wave of “flying saucer” reports that swept the United States after the Kenneth Arnold sighting of June 1947 and the Roswell incident of July 1947. The case was filed with the Federal Bureau of Investigation, whose Knoxville, Albuquerque, Los Angeles, and other field offices routed UFO reports to headquarters under the Bureau’s standing protocols for the protection of vital installations.

What the document records

On August 13, 1947, URIE and his sons observed a sky-blue, disc-shaped object while URIE was looking for his sons near the Snake River Canyon. The object was approximately 75 feet in the air and appeared to be streamlined with a curved, rolled outer edge. It moved quickly and disappeared behind a hill, and did not leave any smoke or odor.

The number of witnesses is not specified in the released document.

Type of case

The witnesses described the object as disc- or saucer-shaped.

Status

All records released under the PURSUE program are designated unresolved by the All-domain Anomaly Resolution Office (AARO) by default. The federal government has not concluded that the events were anomalous, has not concluded that they were conventional, and has not ruled out either possibility. Conventional candidates for sightings of this period include experimental aircraft, weather balloons (especially the Project Mogul series in the late 1940s), atmospheric optical phenomena such as sundogs and lenticular clouds, and astronomical objects including Venus, the Moon, and meteors near the horizon.

Sources

• Original release on war.gov
• Department of War UFO Disclosure Portal
• AARO (All-domain Anomaly Resolution Office)