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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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| Conway Robinson Memorial State Forest | State Forest | 23.3 | Gainesville | Virginia |
| Cathland State Park | State Park | 33.3 | Knoxville | Maryland |
| Ridge State Fish Hatchery | State Fish Hatchery | 37.5 | Berkeley Springs | West Virginia |
| Seneca Creek State Park | State Park | 39.7 | Gaithersburg | Maryland |
| Washington Monument State Park | State Park | 39.7 | Middletown | Maryland |
| Cacapon State Park | State Park | 40.7 | Berkeley Springs | West Virginia |
| Gambrill State Park | State Park | 41.4 | Frederick | Maryland |
| National Memorial Park | National Memorial | 41.5 | Falls Church | Virginia |
| Greenbrier State Park | State Park | 42.1 | Boonsboro | Maryland |
| Fort Frederick State Park | State Park | 43.4 | Big Pool | Maryland |