The Southern Illinois Flying Triangle sites encompass a multi-county region in southern Illinois where one of the most well-documented mass UFO sightings in modern history occurred. The incident spanned approximately 90 minutes across multiple jurisdictions, with witnesses reporting a silent, triangular craft estimated to be between 300-400 feet in length. The region covers rural and small-town areas between St. Louis and the Illinois-Missouri border, characterized by flat agricultural terrain and scattered wooded areas that provided clear sightlines for the multiple police officers who witnessed the event. Today, visitors can drive the approximate flight path through Lebanon, Shiloh, Millstadt, and Highland, though no physical markers commemorate the incident.
European-American settlement of southern Illinois region begins
January 5 - Multiple police officers across four towns report large triangular craft moving silently overhead
Incident becomes widely studied case in UFO literature and government disclosure discussions
“Officer Craig Stevens-- he was directly below one of these triangles. And he said that it was trying to cloak or camouflage itself against the night sky, and was projecting the star field above it on the bottom surface, allowing it to effectively blend in with its background.”
“This is known as the famous Southern Illinois Flying Triangle. We have about four different police officers. What they describe seeing are three distinct arrowhead-shaped craft.”
The January 5, 2000 incident differs from typical archaeological sites as it represents a modern unexplained aerial phenomenon rather than ancient construction. However, researchers have extensively documented the testimonies and flight path, creating a detailed reconstruction of the events. The incident began around 4:00 AM when Lebanon Police Officer Ed Barton first spotted an unusual craft, followed by coordinated sightings across multiple jurisdictions as the object appeared to follow a northeastern trajectory.
UFO researchers including the National Institute for Discovery Science have investigated the incident, collecting police reports, 911 recordings, and witness testimonies. The consistency of descriptions across multiple trained observers - all law enforcement officers - has made this case particularly compelling to researchers. Officers described a massive, silent, triangular craft with unusual lighting patterns that seemed to defy conventional aircraft capabilities.
The scientific consensus among mainstream researchers is that the officers genuinely witnessed something unusual, though explanations range from experimental military aircraft to atmospheric phenomena. The lack of radar confirmation from Lambert-St. Louis International Airport and Scott Air Force Base has added to the mystery. What remains genuinely unknown is the nature of what was observed - whether terrestrial experimental technology, natural phenomena, or something else entirely.
The case has been featured in numerous UFO documentaries and government disclosure discussions, with some researchers pointing to it as one of the most credible mass sightings on record due to the reliability and training of the witnesses involved.
The incident lasted approximately 90 minutes as the object moved across multiple police jurisdictions
Officer Craig Stevens of Millstadt estimated the craft was about 300 feet long and moved at roughly 15 mph
The case is notable for having multiple trained law enforcement witnesses rather than civilian observers
Scott Air Force Base initially had no comment, later stating they had no aircraft in the area at the time
The incident sites are accessible via public roads through the small towns of Lebanon, Shiloh, Millstadt, and Highland in southern Illinois. Visitors can drive the approximate flight path described by witnesses, though there are no official markers or interpretive centers dedicated to the incident. The rural nature of the area provides similar clear night sky visibility to what the officers experienced in 2000.
St. Louis, Missouri, approximately 20-30 miles southwest
Clear nights offer the best opportunity to appreciate the sky conditions similar to those during the 2000 incident. Fall and winter months typically provide the clearest atmospheric conditions in southern Illinois.
Cape Girardeau, Missouri
United StatesRoswell
Another famous UFO incident site that has become central to modern UFO research and government disclosure discussions
White Sands Proving Ground
Military testing facility where experimental aircraft might explain some UFO sightings in the American Southwest
GIMBAL UAP Incident Site (Atlantic Coast of Florida)
Recent U.S. Navy UAP encounter site that represents modern military acknowledgment of unexplained aerial phenomena