Rock Cut State Park - Two lakes set off the park's 3,092 acres. Pierce Lake, with 162 acres, is a retreat for people wanting to fish, ice fish or ice skate. A second 50-acre Olson Lake is especially for swimmers. Rounding out the park's recreational options are camping, hikin - http://www.dnr.state.il.us/lands/Landmgt/PARKS/R1/ROCKCUT.HTM