MD

National Park Service sites in Maryland

Maryland has 27 National Park Service sites in the NPS data. In the Oct 28, 2026 snapshot, 14 of them had active alerts — 31 in total, including 14 closures — and together they list 55 NPS campgrounds.

Updated · NPS Data API

Sites in Maryland
ParkDesignationActive alertsClosuresCampgroundsEntrance fee
Antietam National BattlefieldNational Battlefield100Fee
Appalachian National Scenic TrailNational Scenic Trail210Free
Assateague Island National SeashoreNational Seashore1011Fee
Baltimore-Washington ParkwayParkway000Free
Captain John Smith Chesapeake National Historic TrailNational Historic Trail000Free
Catoctin Mountain ParkPark006Free
Chesapeake & Ohio Canal National Historical ParkNational Historical Park4137Fee
Chesapeake BayNational Park Service site000Free
Civil War Defenses of WashingtonNational Park Service site110Free
Clara Barton National Historic SiteNational Historic Site110Free
Fort Foote ParkPark110Free
Fort McHenry National Monument and Historic ShrineNational Monument and Historic Shrine400Fee
Fort Washington ParkPark000Free
George Washington Memorial ParkwayMemorial Parkway530Free
Glen Echo ParkPark000Free
Greenbelt ParkPark001Free
Hampton National Historic SiteNational Historic Site630Free
Harmony HallNational Park Service site000Free
Harpers Ferry National Historical ParkNational Historical Park210Fee
Harriet Tubman Underground Railroad National Historical ParkNational Historical Park000Free
Monocacy National BattlefieldNational Battlefield000Free
Oxon Cove Park & Oxon Hill FarmNational Park Service site000Free
Piscataway ParkPark110Free
Potomac Heritage National Scenic TrailNational Scenic Trail110Free
Star-Spangled Banner National Historic TrailNational Historic Trail100Free
Thomas Stone National Historic SiteNational Historic Site000Free
Washington-Rochambeau Revolutionary Route National Historic TrailNational Historic Trail000Free

Planning a trip in Maryland

22 of these sites have no entrance fee in NPS fee data. Open a park to see its fees and passes, hours, visitor centers, campgrounds and every current alert. Sites that cross state lines are listed in each state they touch.

Heading out? Check each park's alerts the morning you leave — closures for weather, fire and road work are often posted on short notice.

Other states and territories

AlabamaAlaskaAmerican SamoaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaGuamHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaNorthern Mariana IslandsOhioOklahomaOregonPennsylvaniaPuerto RicoRhode IslandSouth CarolinaSouth DakotaTennesseeTexasU.S. Virgin IslandsUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming

Want the headline parks only? See the national parks list, or browse all NPS campgrounds.

Sources

  • National Park Service Data API — parks, alerts, fees and campgrounds, snapshot of Oct 28, 2026.
  • Data: National Park Service (NPS) Data API, U.S. Department of the Interior (developer.nps.gov). This product uses the NPS Data API but is not endorsed or certified by the National Park Service. The National Park Service and the U.S. Department of the Interior do not endorse OpenParks. Photos are NPS images shown with their original credits; park descriptions are short excerpts credited to the NPS. Always confirm current conditions on nps.gov before you travel.