Crab Orchard Wilderness Crab Orchard Wilderness Williamson 663 Lick Creek
The Ledges County Forest Preserve The Ledges County Forest Preserve Winnebago 801 Belvidere NW
Clayton Andrews County Forest Preserve Clayton Andrews County Forest Preserve Winnebago 804 Belvidere NW
Kinnikinnick Creek Nature Preserve Kinnikinnick Creek Nature Preserve Boone 896 Belvidere NW
Roland Olson County Forest Preserve Roland Olson County Forest Preserve Winnebago 879 Belvidere NW
Argonne National Laboratory Reservation Argonne National Laboratory Reservation DuPage 735 Sag Bridge
Waterfall Glen County Forest Preserve Waterfall Glen County Forest Preserve DuPage 758 Romeoville
Lib Forest Preserve Lib Forest Preserve Boone 732 Caledonia
FERMI National Accelerator Laboratory (historical) FERMI National Accelerator Laboratory (historical) DuPage 738 Naperville
Bald Knob Wilderness Bald Knob Wilderness Union 528 Wolf Lake
Bay Creek Wilderness Bay Creek Wilderness Pope 653 Eddyville
Burden Falls Wilderness Burden Falls Wilderness Pope 440 Stonefort
Clear Springs Wilderness Clear Springs Wilderness Union 679 Wolf Lake
Garden of the Gods Wilderness Garden of the Gods Wilderness Saline 522 Herod
Lusk Creek Wilderness Lusk Creek Wilderness Pope 673 Eddyville
Panther Den Wilderness Panther Den Wilderness Union 679 Lick Creek