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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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| Lowden State Park | State Park | 27.8 | Oregon | Illinois |
| Big Foot Beach State Park | State Park | 31.9 | Lake Geneva | Wisconsin |
| Castle Rock State Park | State Park | 33 | Oregon | Illinois |
| White Pines Forest State Park | State Park | 35 | Mount Morris | Illinois |
| Moraine Hills State Park | State Park | 38.3 | McHenry | Illinois |
| Franklin Creek State Park | State Park | 38.6 | Franklin Grove | Illinois |
| Volo Bog State Natural Area | State Natural Area | 40.1 | Grant | Illinois |
| Chain OLakes State Park | State Park | 41.8 | Antioch | Illinois |
| Shabbona Lake State Recreation Area | State Recreation Area | 42.4 | Shabbona | Illinois |
| Lake Le Aqua Na State Park | State Park | 43.9 | Lena | Illinois |