National parks, monuments & historic sites in Maryland

Frequently asked questions about Maryland's parks

How many national parks are in Maryland?

Maryland doesn't have a designated "National Park," but the National Park Service still manages 27 sites here — including monuments, historic sites, and memorials worth visiting.

What's the difference between a national park, monument, and historic site in Maryland?

A National Park is established by Congress to protect a large landscape with multiple resources — think Yellowstone or Acadia. A National Monument is created by presidential proclamation to protect a specific landmark or feature and is usually smaller. A National Historic Site preserves a single place tied to American history. All three are managed by the National Park Service, but they vary widely in size, fees, and what there is to do.

Which national monuments are in Maryland?

Maryland has 1 national monument: Fort McHenry National Monument and Historic Shrine.

Are there historic sites worth visiting in Maryland?

Yes — Maryland has 12 NPS-managed historic sites, memorials, or battlefields. The most-visited include Chesapeake & Ohio Canal, Harpers Ferry, and Harriet Tubman Underground Railroad. Most are free or have a low entrance fee and can be done in a half-day.

Do I need a reservation to visit parks in Maryland?

It depends on the site. A handful of marquee national parks now require timed-entry reservations during peak season, and most campgrounds book out months ahead on Recreation.gov. Monuments and historic sites almost never require reservations. Check the individual park page for the current rules before you go — we keep it synced daily.

When is the best time to visit Maryland's national parks?

Spring (April–May) and fall (September–October) generally offer the best mix of weather, lower crowds, and full access. Summer is the busiest by far at every marquee park. Winter cuts crowds dramatically but closes roads and facilities at higher elevations.

Is the America the Beautiful pass worth it for Maryland?

If you'll visit more than three fee-charging sites in a year — anywhere in the U.S., not just Maryland — the $80 annual America the Beautiful pass pays for itself. It covers entrance fees at every NPS site and most federal recreation lands. Seniors (62+), active military, fourth-graders, and people with permanent disabilities qualify for free or discounted versions.