National Park Service Sites in Maryland
Swain's Lock on the Chesapeake & Ohio Canal
National Park Service Sites
- American Discovery Trail
- Antietam National Battlefield
- Antietam National Cemetery
- Appalachian National Scenic Trail
- Assateague Island National Seashore
- Baltimore-Washington Parkway
- Captain John Smith Chesapeake National Historic Trail
- Catoctin Mountain Park
- Chesapeake & Ohio Canal National Historic Park
- Chesapeake Bay Gateway and Watertrails Network
- Clara Barton National Historic Site
- Fort Foote Park
- Fort McHenry National Monument & Historic Shrine
- Fort Washington Park
- George Washington Memorial Parkway
- Glen Echo Park
- Greenbelt Park
- Hampton National Historic Site
- Harmony Hall
- Monocacy National Battlefield
- Oxon Cove Park & Oxon Hill Farm
- Piscataway Park
- Potomac Heritage National Scenic Trail
- Star-Spangled Banner National Historic Trail
- Suitland Parkway
- Thomas Stone National Historic Site
The "sally port" at Fort McHenry National Monument
Photo of the Chesapeake & Ohio Canal courtesy of Wikipedia userid Lorax, CCA-by-SA 3.0 License
Photo of Fort McHenry courtesy of Wikipedia userid ScottyBoy900Q, CCA-by-SA 3.0 License