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| Lighthouse |
| Metro and City Park |
| National Forest |
| National Historic Landmark |
| National Historic Site |
| National Historical Park |
| National Memorial |
| National Park |
| National Recreation Area |
| National Seashore |
| National Wildlife Area |
| National Wildlife Refuge |
| State Fish Hatchery |
| State Fishery Area |
| State Forest |
| State Historic Site |
| State Memorial |
| State Natural Area |
| State Nature Preserve |
| State Nursery |
| State Park |
| State Preserve |
| State Recreation Area |
| State Reserve |
| State Wildlife Area |
| State Wildlife Management Area |
| State Wildlife Refuge |
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| Fort Creve Coeur State Park | State Park | 15.6 | Creve Coeur | Illinois |
| Snakeden Hollow State Fish and Wildlife Area | State Wildlife Area | 19.4 | Victoria | Illinois |
| Cameron National Wildlife Refuge | National Wildlife Refuge | 27.5 | Henry | Illinois |
| Sand Ridge State Forest | State Forest | 27.7 | Quiver | Illinois |
| Chautaugua National Wildlife Refuge | National Wildlife Refuge | 30.6 | Glasford | Illinois |
| Dickson Mounds State Park | State Park | 35.5 | Lewistown | Illinois |
| Mautino State Fish and Wildlife Area | State Wildlife Area | 35.7 | Buda | Illinois |
| Johnson Sauk Trail State Park | State Park | 35.8 | Kewanee | Illinois |
| Miller Anderson Woods State Nature Preserve | State Nature Preserve | 36.4 | Tiskilwa | Illinois |
| Hennepin Canal Parkway State Park | State Park | 39.6 | Sheffield | Illinois |