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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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| Castlewood State Park | State Park | 14.1 | Ballwin | Missouri |
| Illinois Caverns State Natural Area | State Natural Area | 16.8 | Waterloo | Illinois |
| Holten State Park | State Park | 21.4 | East St. Louis | Illinois |
| Fort Chartres State Park | State Park | 23.4 | Prairie du Rocher | Illinois |
| Babler State Park | State Park | 23.7 | Chesterfield | Missouri |
| Spring Lake State Park | State Park | 24.4 | Canteen | Illinois |
| Cahokia Mounds State Park | State Park | 25.3 | Collinsville | Illinois |
| Washington State Park | State Park | 26.6 | De Soto | Missouri |
| Modoc Rock Shelter National Historic Site | National Historic Site | 27.9 | Prairie du Rocher | Illinois |
| Saint Francois State Park | State Park | 28.8 | Bonne Terre | Missouri |