Template:Protected Areas of Maryland

Antietam National Battlefield • Appalachian Trail • Assateague Island National Seashore • Captain John Smith Chesapeake National Historic Trail • Catoctin Mountain Park • Chesapeake and Ohio Canal National Historical Park • Chesapeake Bay Gateways Network • Clara Barton National Historic Site • Fort Foote Park • Fort McHenry National Monument and Historic Shrine • Fort Washington Park • Glen Echo Park • Greenbelt Park • Hampton National Historic Site • Harmony Hall • Monocacy National Battlefield • Oxon Cove Park and Oxon Hill Farm • Piscataway Park • Potomac Heritage National Scenic Trail • Star-Spangled Banner National Historic Trail • Thomas Stone National Historic Site

Assateague • Big Run • Calvert Cliffs • Casselman River Bridge • Chapel Point • Cunningham Falls • Dans Mountain • Deep Creek Lake • Elk Neck • Fort Frederick • Fort Tonoloway • Gambrill • Gathland • Greenbrier • Greenwell • Gunpowder Falls • Hart-Miller Island • Herrington Manor • Janes Island • Jonas Green • Martinak • Matapeake • New Germany • North Point • Palmer • Patapsco Valley • Patuxent River • Pocomoke River • Point Lookout • Purse • Rocks • Rocky Gap • Rosaryville • Sandy Point • Seneca Creek • Smallwood • South Mountain • St. Clement's Island • St. Mary's River • Susquehanna • Swallow Falls • Tuckahoe • Washington Monument • Wills Mountain • Wye Oak

Belle Grove • Billmeyer • Bowen • Cedar Island • Cheltenham • Chicamuxen • Dan's Mountain • Deal Island • Diersson • E.A. Vaughn • Earlville • Ellis Bay • Fairmount • Fishing Bay • Gwynnbrook • Heater's Island • Hugg-Thomas • Idylwild • Indian Springs • Isle of Wight • Johnson • Le Compte • Linkwood • McKee-Beshers • Maryland Marine Properties • Millington • Mt. Nebo • Myrtle Grove • Nanticoke River • Pocomoke River • Pocomoke Sound • Sideling Hill • Sinepuxent Bay • South Marsh • Strider • Taylors Island • Warrior Mountain • Wellington •

Battle Creek Cypress Swamp Sanctuary • Choptank River Fishing Pier • Merkle Wildlife Sanctuary • Morgan Run Natural Environment Area • Sherwood Gardens • Somers Cove Marina • Sugarloaf Mountain • Western Maryland Rail Trail • Youghiogheny Scenic & Wild River