Free Events, Tours

Cahokia Mounds Tours-Spring

When: Saturdays, Sundays, 1:30 p.m. Continues through May 31. Cahokia Mounds State Historic Site, 30 Ramey St. & Collinsville Rd., Collinsville, 618-346-5160, http://www.cahokiamounds.com.

These guided tours last approximately one hour and visit various parts of the site; no reservations required.