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.
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.
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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 located at the confluence of three counties, the other two being Anne Arundel and Baltimore counties.
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.
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 built for railroad use in the United States for the Baltimore and Ohio Railroad, founded 1827, with construction beginning the following year and completed 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 mountainous areas of 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. Street was first settled by Dutch immigrants in the early 18th century.
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.
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.
James Crawford Neilson, or J. Crawford Neilson, was a Baltimore, Maryland-based architect. He was born in Baltimore, Maryland in 1816. After the death of his father in 1822 the family moved to England and in 1824 to Brussels. In 1833, he returned to Baltimore and in 1835, became a member of the survey party working on the Baltimore and Port Deposit Railroad,. His supervisor was Benjamin Henry Latrobe, II, (1806-1878), later supervising engineer on the Baltimore and Ohio Railroad,, son of an equally famous architect, Benjamin Henry Latrobe, (1764-1820). It was at this time that he first became acquainted with John Rudolph Niernsee, (1814-1885), while helping to survey in the area of Martinsburg, Virginia, for the Baltimore and Ohio Railroad.
Kessler Tunnel is an abandoned railroad tunnel in Allegany County, Maryland, located about 8.5 miles (13.7 km) east-northeast of Oldtown. It was built by the Western Maryland Railway (WM) in 1906. It was constructed with concrete arch portals and the roof has wood planking. The tunnel was named for landowner John Kessler.
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.