As reported
Triangle over Cahokia/Granite City, IL
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
A black triangular craft with 4 lights green and blue moved slowly through the sky.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.