COLLINSVILLE, Ill. (AP) – Cahokia Mounds State Historic Site in Collinsville is offering a chance to explore Native American culture next month.

The historic site has scheduled “American Indian Educational Days” the weekend of Sept. 13-14. The free event will include demonstrations and hands-on activities for children.

The Missouri Atlatl Association will hold its annual competition on the first day. Participants will compete for distance and accuracy with a spear-throwing device that was used for 10,000 years before the development of the bow and arrow.

Cahokia Mounds State Historic Site is eight miles from downtown St. Louis in Collinsville, Illinois.

The historic site’s mounds are the largest Native American earthworks north of Mexico. They were part of a city built by the Mississippian culture that flourished 1,000 years ago in the Midwest and South.