There are more than 1,500 properties and districts listed on the National Register of Historic Places in the U.S. State of Maryland. Each of the state's 23 counties and its one county-equivalent (the independent city of Baltimore) has at least 20 listings on the National Register.
This National Park Service list is complete through NPS recent listings posted August 5, 2022.
The following are approximate tallies of current listings in Maryland on the National Register of Historic Places. These counts are based on entries in the National Register Information Database as of April 24, 2008and new weekly listings posted since then on the National Register of Historic Places web site. There are frequent additions to the listings and occasional delistings, and the counts here are not official. Also, the counts in this table exclude boundary increase and decrease listings which modify the area covered by an existing property or district and which carry a separate National Register reference number.
Scouting in Maryland has a long history, from the 1910s to the present day, serving millions of youth with activities that have adapted to the changing cultural environment but have always been rooted in an active outdoor program.
Elkridge is an unincorporated community and census-designated place (CDP) in Howard County, Maryland, United States. The population was 15,593 at the 2010 census. Founded early in the 18th century, Elkridge is adjacent to two other counties, Anne Arundel and Baltimore.
The Western Maryland Railway was an American Class I railroad (1852–1983) which operated in Maryland, West Virginia, and Pennsylvania. It was primarily a coal hauling and freight railroad, with a small passenger train operation.
The National Register of Historic Places in the United States is a register including buildings, sites, structures, districts, and objects. The Register automatically includes all National Historic Landmarks as well as all historic areas administered by the U.S. National Park Service. Since its introduction in 1966, more than 90,000 separate listings have been added to the register.
Green Ridge is a now uninhabited railroad community in Morgan County in the U.S. state of West Virginia on the old Baltimore and Ohio Railroad mainline where the Western Maryland Railroad crosses the Potomac River from the Stickpile Tunnel in Maryland. Green Ridge was originally known as Baird and was an operating station on the B&O. Today, it is located within the Chesapeake and Ohio Canal National Historical Park. A stretch of the Western Maryland's right-of-way from Green Ridge to Jerome is listed on the National Register of Historic Places.
Buildings, sites, districts, and objects in Virginia listed on the National Register of Historic Places:
The Bollman Truss Railroad Bridge at Savage, Maryland is the sole surviving example of a revolutionary design in the history of American bridge engineering. The 160-foot (48.8 m) double-span is a suspension truss bridge. The first Bollman bridge was installed on the site; however, the current bridge is not the original. The current bridge was built in 1852 and moved to the site thirty years later. It is one of the oldest standing iron railroad bridges in the United States. Currently, however, it is in use carrying the Savage Mill Trail across the Little Patuxent River.
The Carrollton Viaduct, located over the Gwynns Falls stream near Carroll Park in southwest Baltimore, Maryland, is the first stone masonry bridge for railroad use in the United States, built for the Baltimore and Ohio Railroad, founded 1827, and one of the world's oldest railroad bridges still in use for rail traffic. Construction began in 1828 and was completed in 1829. The bridge is named in honor of Charles Carroll of Carrollton (1737–1832), of Maryland, known for being the last surviving signer of the Declaration of Independence, the only Roman Catholic in the Second Continental Congress (1775–1781), and wealthiest man in the Thirteen Colonies of the time of the American Revolutionary War (1775–1783).
The Thomas Viaduct spans the Patapsco River and Patapsco Valley between Relay, Maryland and Elkridge, Maryland, USA. It was commissioned by the Baltimore and Ohio Railroad (B&O); built between July 4, 1833, and July 4, 1835; and named for Philip E. Thomas, the company's first president. It remains the world's oldest multiple arched stone railroad bridge.
The Patterson Viaduct was built by the Baltimore and Ohio Railroad (B&O) as part of its Old Main Line during May to December 1829. The viaduct spanned the Patapsco River at Ilchester, Maryland. It was heavily damaged by a flood in 1866 and subsequently replaced with other structures.
Maryland Route 144 is a collection of state highways in the U.S. state of Maryland. These highways are sections of old alignment of U.S. Route 40 between Cumberland and Baltimore. Along with US 40 Scenic, US 40 Alternate, and a few sections of county-maintained highway, MD 144 is assigned to what was once the main highway between the two cities, connecting those endpoints with Hancock, Hagerstown, Frederick, New Market, Mount Airy, Ellicott City, and Catonsville. MD 144 has seven disjoint sections of mainline highway that pass through the Appalachian Mountains in Allegany and Washington counties and the rolling Piedmont of Frederick, Carroll, Howard, and Baltimore counties.
Street is a rural unincorporated community in northern Harford County, Maryland, United States.
The Baltimore and Ohio Ellicott City Station Museum in Ellicott City, Maryland, is the oldest remaining passenger train station in the United States, and one of the oldest in the world. It was built in 1830 as the terminus of the Baltimore and Ohio Railroad line from Baltimore to the town then called Ellicott's Mills, and a facility to service steam locomotives at the end of the 13-mile (21 km) run. The station, a National Historic Landmark, is now used as a museum.
This is a list of the National Register of Historic Places listings in Allegany County, Maryland.
The Savage Mill Historic District is a national historic district located at Savage, Howard County, Maryland. The district comprises the industrial complex of Savage Mill and the village of workers' housing to the north of the complex.
Western Maryland Railroad Right-of-Way, Milepost 126 to Milepost 160 is a historic section of the Western Maryland Railway (WM) in Allegany County, Maryland, and Morgan County, West Virginia. It is an abandoned 34-mile (55 km) section of the right-of-way between milepost 126 at the intersection of the Chesapeake and Ohio (C&O) Canal and Long Ridge Road, Woodmont, and milepost 160 just west of Maryland Route 51, North Branch. It closely parallels the Potomac River and the C&O Canal, which runs along the north bank of the river, and includes three tunnels. Seven miles of the roadbed are in West Virginia near Paw Paw.
Whiteford is an unincorporated community in Harford County, Maryland, United States. The community has historically had a strong Welsh heritage, which is reflected in the local architecture.
The National Weather Service Baltimore/Washington is a local office of the National Weather Service responsible for monitoring weather conditions in 44 counties in eastern West Virginia, northern and central Virginia, the majority of the state of Maryland, as well as the city of Washington, D.C. Although labeled as the NWS Baltimore/Washington, its actual location is off Old Ox Road in the Dulles section of Sterling, Virginia, adjacent to Washington Dulles International Airport.