Illinois State Parks
- Adeline Jay Geo-Karis Illinois Beach State Park
- Anderson Lake State Park
- Apple River Canyon State Park
- Argyle Lake State Park
- Banner Marsh State Park
- Beall Woods State Park
- Beaver Dam State Park
- Big River State Park
- Burning Star State Park
- Cache River State Park
- Carlyle Lake State Park
- Castle Rock State Park
- Cave-In-Rock State Park
- Chain O' Lakes State Park
- Channahon State Park
- Clinton Lake State Park
- Coffeen Lake State Park
- Delabar State Park
- Des Plaines State Park
- Dixon Springs State Park
- Eldon Hazlet State Park
- Ferne Clyffe State Park
- Fort Massac State Park
- Fox Ridge State Park
- Frank Holten State Park
- Gebhard Woods State Park
- Giant City State Park
- Goose Lake Prairie State Park
- Hamilton State Park
- Harmonie State Park
- Horseshoe Lake State Park
- Illini State Park
- Illinois Caverns State Park
- Illinois and Michigan Canal State Park
- Jim Edgar Panther Creek State Park
- Jubilee College State Park
- Kankakee River State Park
- Kaskaskia River State Park
- Kickapoo State Park
- Lake Le-Aqua-Na State Park
- Lake Murphysboro State Park
- Lake Shelbyville State Park
- Lincoln Trail State Park
- Lowden State Park
- Matthiessen State Park
- Moraine Hills State Park
- Morrison-Rockwood State Park
- Pere Marquette State Park
- Prophetstown State Park
- Pyramid State Park
- Ramsey Lake State Park
- Red Hills State Park
- Rock Cut State Park
- Sam Dale Lake State Park
- Sam Parr State Park
- Sand Ridge State Park
- Sangchris Lake State Park
- Shabbona Lake State Park
- Silver Springs State Park
- Siloam Springs State Park
- South Shore State Park
- Starved Rock State Park
- Stephen A. Forbes State Park
- Trail of Tears State Park
- Walnut Point State Park
- Wayne Fitzgerrell State Park
- Weinberg-King State Park
- White Pines Forest State Park
- William G. Stratton State Park
- Wolf Creek State Park