Maryland
National parks, the official driver handbook, and how far you can realistically reach by car — everything you need to start planning a trip around Maryland.
National parks in Maryland
Antietam National Battlefield
ANTI
Appalachian National Scenic Trail
APPA
Assateague Island National Seashore
ASIS
Baltimore-Washington Parkway
BAWA
Captain John Smith Chesapeake National Historic Trail
CAJO
Catoctin Mountain Park
CATO
Chesapeake & Ohio Canal National Historical Park
CHOH
Chesapeake Bay
CBPO
Civil War Defenses of Washington
CWDW
Clara Barton National Historic Site
CLBA
Fort Foote Park
FOFO
Fort McHenry National Monument and Historic Shrine
FOMC
Fort Washington Park
FOWA
George Washington Memorial Parkway
GWMP
Glen Echo Park
GLEC
Greenbelt Park
GREE
Hampton National Historic Site
HAMP
Harmony Hall
HAHA
Harpers Ferry National Historical Park
HAFE
Harriet Tubman Underground Railroad National Historical Park
HATU
Monocacy National Battlefield
MONO
Oxon Cove Park & Oxon Hill Farm
OXHI
Piscataway Park
PISC
Potomac Heritage National Scenic Trail
POHE
Star-Spangled Banner National Historic Trail
STSP
Thomas Stone National Historic Site
THST
Washington-Rochambeau Revolutionary Route National Historic Trail
WAROScenic byways in Maryland
Antietam Campaign Scenic Byway
National Scenic Byway — 97 mi
View byway →Catoctin Mountain Scenic Byway
National Scenic Byway — 38 mi
View byway →Charles Street
National Scenic Byway — 11 mi
View byway →Chesapeake Country Scenic Byway
National Scenic Byway — 84 mi
View byway →Falls Road
National Scenic Byway — 27 mi
View byway →George Washington Memorial Parkway
National Scenic Byway — 26 mi
View byway →Harriet Tubman Underground Railroad
National Scenic Byway — 60 mi
View byway →Historic National Road - Maryland
National Scenic Byway — 170 mi
View byway →Historic National Road - Pennsylvania
National Scenic Byway — 80 mi
View byway →Horses and Hounds Scenic Byway
National Scenic Byway — 58 mi
View byway →Lower Susquehanna Scenic Byway
National Scenic Byway — 27 mi
View byway →Mason and Dixon Byway
National Scenic Byway — 53 mi
View byway →Mountain Maryland Byway
National Scenic Byway — 60 mi
View byway →National Historic Seaport
National Scenic Byway — 7 mi
View byway →Roots and Tides Byway
National Scenic Byway — 46 mi
View byway →Star-Spangled Banner Byway
National Scenic Byway — 32 mi
View byway →Washington Heritage Trail
National Scenic Byway — 131 mi
View byway →Traffic rules
Right turn on red: permitted after a full stop unless a sign prohibits it.
Speed, seat-belt and phone classifications follow the IIHS and GHSA state-law tables; laws change, so confirm the details in Maryland's official source: Maryland MVA (Motor Vehicle Administration). For the full rundown, see our US driving-rules guide.
Driver handbook
Refueling in Maryland
Self-service is standard: pull up to the pump, pay at the pump by card or prepay inside, then fill up yourself. Many stations — especially overnight — won't switch the pump on until you've paid. Fuel is priced per US gallon, and a regular fill is right for almost every rental.
Latest EIA weekly figure in USD per US gallon; some states show their PADD regional average. Compare every state on the fuel-price map, or read the full guide to refueling in the USA.