There are 16 NHAs in the Mid-Atlantic; 8 in Pennsylvania alone. Well worth exploring these areas while visiting parks in the region.
- Appalachian Forest: shines in both Maryland and West Virginia
- Baltimore: Chesapeake, McHenry, Poe, Star-Spangled Banner…
- Crossroads of the American Revolution: Washington Crossing, Morristown, Rochambeau…
- Delaware & Lehigh: National Canal Museum, Lower Delaware River…
- Journey Through Hallowed Ground: Civil War sites from Virginia to Gettysburg Pennsylvania
- Lackawanna Valley: Steamtown and early industrial sites
- National Coal: Bluestone, Gauley, New River Gorge…
- Northern Neck: George Washington Birthplace, Potomac Heritage…
- Oil Region: Drakes Well and petroleum industry sites
- Path of Progress: Allegheny Portage, Fallingwater, Johnstown Flood…
- Rivers of Steel: Fort Necessity, Friendship Hill, steel industry sites
- Schuylkill River Greenways: Hopewell Furnace, Independence, Valley Forge…
- Shenandoah Valley Battlefields: Cedar Creek & Belle Grove, Shenandoah…
- Southern Maryland: Fort Washington, Piscataway, Thomas Stone…
- Susquehanna: Chesapeake, colonial York, Amish of Lancaster County…
- Wheeling: where the National Road crosses the Ohio River, below

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