Unknown over Yankton (Gavins Point Dam), SD
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
Blue sky black, beam of light, South Dakota camp rangers on blow horns "what you have just seen was a rare phenomenon of the weather.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.
Ask for the records
What would the paper say?
Sightings from the Project Blue Book era (through 1969) live in Record Group 341 at the National Archives. Through Aletheca, the house instrument, anyone can commission the request — filed, chased, and published in the open, refusals included. The draft goes over already written: the records sought, and the date window they would live in.
Routed to: National Archives and Records Administration · records window 1968-06-27 → 1968-07-14