Maury Island incident investigated by FBI Seattle

The Maury Island incident (June 21, 1947) involved Harold A. Dahl reporting multiple unidentified craft and alleged metallic 'slag' falling near Maury Island in Puget Sound; the case attracted attention from the U.S. Army Air Forces and the FBI. The FBI Seattle Field Office assembled investigative files on the incident, including interviews and correspondence, and those files have been released and are available in federal records. The incident is often referenced in histories of Pacific Northwest UFO reports and was a factor in early official inquiries into unidentified aerial phenomena.