Free Events, Tours

Cahokia Mounds Tours-Summer

When: Wednesdays-Saturdays, 10:30 a.m. & 1:30 p.m.; Sundays, 12:30 & 2:30 p.m. Continues through Aug. 31. Cahokia Mounds State Historic Site, 30 Ramey St. & Collinsville Rd., Collinsville, 618-346-5160,

The early tour visits the Stockade reconstruction and goes up Monks Mound. The later tour goes through the Grand Plaza to Twin Mounds and Mound 72; the guided tours last approximately one hour.