Ice sheets have covered much of the northern hemisphere from time to time. While much of eastern Illinois was covered by the most recent (Wisconsinan) Glaciation, Winnebago County was last under ice during the earlier Illinoian Glacial Stage. Learn how ice-age events have shaped our landscape—and our flora.
We are in the process of switching our registration platform to make it easier for you and for staff. In the process some of our July events are in the calendar below and other July events and all events after July are in the button below. Thank you for your patience as we change over our new system.