Southern Illinois the Ozarks of Missouri, is chiefly in southern Jackson, Union, northern Alexander and Johnson counties. The eastern area, more closely related to the Wabash Valley Seismic Zone, is mostly in northern Pope, southern Saline, Gallatin, eastern Johnson and southern Williamson counties. The Shawnee National Forest covers a large territory, including seven wilderness areas: Garden of the Gods, Bay Creek, Clear Springs, Bald Knob, Burden Falls, Lusk Creek, and Panthers Den. Of southern Illinois' rivers, only the Mississippi and the Ohio are navigable for modern commerce. The Big Muddy River, Marys River, Saline River and Cache River run their courses in
Indian Creek (Fox River tributary) County. A lake and State Recreation Area named for Chief Shabbona, is located in the community of Shabbona, which was also named for the Indian chief. Paw Paw Creek is a short tributary of Indian Creek that runs in a southeasterly direction near Paw Paw, Illinois. Indian Creek (Fox River tributary) Indian Creek, also known as Big Indian Creek, is a tributary of the Fox River in Lee, LaSalle, and DeKalb counties in Illinois. Indian Creek rises north of Paw Paw, Illinois, near Shabbona Grove and joins the Fox River near Wedron. The stream meanders across parts of Lee, LaSalle