St. Clair County Triangle

Record summary

The St. Clair Triangle refers to a series of reported nighttime observations in southwestern Illinois and the St. Louis metropolitan area, generally involving a large triangular or boomerang-shaped object. Civilian investigator Kenny Young documented the reports and presented them as a recurring local phenomenon. The series is valuable for examining repeated-witness narratives, local investigative methods, and the difference between a case file and independently corroborated evidence. The number of incidents, object characteristics, and relationship among reports depend heavily on the investigator’s compilation.