Project Blue Book Sighting Report — Pine Ridge, South Dakota, May 13, 1969

This document consists of a Project Blue Book sighting report and accompanying correspondence regarding an unidentified aerial phenomenon observed on May 13, 1969, over the Pine Ridge Reservation in South Dakota. The primary report, recorded on a standard FTD form, describes a single object observed by a civilian witness. The witness characterized the object as a star-like light that traveled at a high rate of speed from north to south, flashing red, white, and blue. The observer noted that the object made no sound and appeared to be about the size of a pinhead from a distance. The report indicates that the observer had previously sighted UFOs. The official conclusion recorded on the form is 'Probable (AIRCRAFT)'. The accompanying handwritten letters from the witness provide additional context, noting that the witness is a student in the 10th grade who does not drink or smoke. The witness expresses a belief in UFOs and mentions that they have seen several of them, including one on the evening of the report. The witness also mentions that the area of the sighting is isolated and hilly. The witness references a book titled 'Letters to the Air Force on UFOs' by Bill Adler as the source of their interest. The witness explicitly states their belief that the phenomena are not 'marsh gas'. The document includes a brief summary of the sighting on a separate sheet, reiterating the description of the object and its movement, and noting that it disappeared in about a minute.