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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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| Whitewater State Park | State Park | 15.3 | Liberty | Indiana |
| Hueston Woods State Park | State Park | 15.9 | College Corner | Ohio |
| Fort Jefferson State Memorial | State Memorial | 17.7 | Greenville | Ohio |
| Treaty Of Greenville State Park | State Park | 23.5 | Greenville | Ohio |
| Sycamore State Park | State Park | 23.9 | Trotwood | Ohio |
| Summit Lake State Park | State Park | 29.9 | New Castle | Indiana |
| Miamisburg Mound State Memorial | State Memorial | 31 | Miamisburg | Ohio |
| The Narrows State Scenic River Reserve | State Reserve | 42.3 | Xenia | Ohio |
| Beaver Creek Wildlife Area | State Wildlife Area | 43.2 | Xenia | Ohio |
| Glen Thompson State Reserve | State Reserve | 44.2 | Xenia | Ohio |