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Silent Low Flying UFO - Butte, South Dakota
Report: 1667
October 3, 2023
Low flying, in a straight line from my 3 to my 9 o’clock. Maybe 250 feet altitude maybe 1000 feet away. No sound heard by me in my vehicle moving much to fast to be silent by my own experiences. It was out in the horizon and gone in 5-10 seconds maximum.