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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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| Silver Springs State Park | State Park | 19.3 | Yorkville | Illinois |
| Norwegian Settlers State Memorial | State Memorial | 21.1 | Sheridan | Illinois |
| Franklin Creek State Park | State Park | 25.7 | Franklin Grove | Illinois |
| Fox River State Park | State Park | 26.3 | Ottawa | Illinois |
| Buffalo Rock State Park | State Park | 27.9 | Ottawa | Illinois |
| Illini State Park | State Park | 29.6 | Marseilles | Illinois |
| Starved Rock State Park | State Park | 29.9 | Oglesby | Illinois |
| Matthiessen State Park | State Park | 31.3 | Oglesby | Illinois |
| Lowden State Park | State Park | 31.6 | Oregon | Illinois |
| Castle Rock State Park | State Park | 31.6 | Oregon | Illinois |