As reported
Triangle over Maryland, MD
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
The craft was Triangular,one story thick,in the middle was a half sphere ,and it made a deep humming sound.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.
From the same sky