Sighting in 50 mi S of Bismark, February 1957
North Dakota, United States
Sighting reported in February 1957 (50 mi S of Bismark, North Dakota, United States) and investigated by Project Blue Book, the US Air Force UFO investigation (1947-1969). The Air Force's conclusion is in the digitised case file held by the US National Archives.
The original file is a set of scanned documents (reports, sketches, correspondence) that has not been transcribed yet. You can browse it page by page through the source link.
- Date
- February 1957
- Location
- 50 mi S of Bismark · town centre
- Type of sighting
- From the ground
Sources
- See the original document
Project Blue Book (NARA)
n° 28968928
Summary written by SkyUnknown from the facts published by the source.