We often think of the period after the glaciers and before history as one of bison covered prairies and a few Native Americans living lightly on the land. Is this accurate? And how do we know? Join Midewin National Tallgrass Prairie Archaeologist and Tribal Liaison Joe Wheeler as we “dig deeper” into the real story of the prairie past in Northeast Illinois. Presented in partnership with the Orland Park Library. E-mail SM.FS.Midewin_RSVP@usda.gov to register and receive log-in information.