Mauri Island, Washington UFO Sighting (June 1947) — FBI Files
A first saucer wave case from Mauri Island, Washington. Harold Dahl and Fred Chrisman collected strange rock formations from a gravel pit on Mauri Island, Washington.
Background
In June 1947, in Mauri Island, Washington, 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
Harold Dahl and Fred Chrisman collected strange rock formations from a gravel pit on Mauri Island, Washington. They sent the samples to Ray Palmer, editor of Venture and Fantasy magazines, for analysis, and later falsely claimed the materials were fragments of a flying disc in an attempt to sell an exclusive story.
The number of witnesses is not specified in the released document.
Verbatim from the file
“in the early part of June, 197, they picked up some strange rock formations from a gravel pit on Mauri Island, Washington.”
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.