2025-03-14 37th Annual Collinsville Illinois Prehistoric Artifact Show 37th Annual Collinsville Illinois Prehistoric Artifact Show March 14 @ 3:00 pm - March 16 @ 2:00 pm 37th Annual Collinsville Illinois Prehistoric Artifact Show One of the biggest and best shows in the country, co sponsored with GIRS. Dealers and exhibitors MUST have and invitation to set up.
