Type: Official Investigation File
Source: United States Air Force, Project Blue Book
A reproduction and transcription of the Project Blue Book case file covering UFO reports in the Red Bluff, California, area during August 1960.
The file summarizes reports from California Highway Patrol officers, sheriff's personnel and civilians, and includes correspondence and investigative analysis.
The Air Force recorded the case as unidentified, while the file discusses atmospheric refraction and a possible mirage as an explanation for some observations.
The case file documents the official investigation but does not establish that every regional sighting had the same cause.