I love nature parks this is a decent one.

Red Hills State Park is right off of Highway 50 in Lawrence County IL. It has one main trail that is split into three or four named sections. It has camping areas around the lake in the southern section ot the park and a few picnic areas in the northern section of the park. The road in the northern section is rough and the trail is difficult to follow in some places but the "scenic view" is amazing. There is a nearly two mile loop trail in the park, most of which is clear. You can't hear the Highway from inside the park, and the forests are lovely. It's cleaner than most parks I've been to in Southern IL including other state parks. Would go again and will.