As reported
Triangle over Chicago- West Suburbs- Rt 171, IL
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
Black triangle that morning, sat hovering for unknown period of time, and left southbound. Estimated Rt.64-Rt.171.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.