Pere Marquette State Park

The history of Pere Marquette State Park centers around that of the Illinois River. The forces that formed the river can be traced to ancient glaciers that pushed their way down over most of Illinois, but stopped just short of the park land. In the path of the glaciers and their meltwaters, a rich network of streams and rivers were formed, and tons of soil and bedrock were ground to dust which rose and blew up against the hillsides. These ancient layers of wind-blown soil, called loess (pronounced “less”) can be seen along the roads and trails of Pere Marquette.

Location