Oella is a mill town on the Patapsco River in western Baltimore County, Maryland, United States, located between Catonsville and Ellicott City. It is a 19th-century village of millworkers' homes.
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 1868 and subsequently replaced with other structures.
The Bloomington Viaduct spans the Northern Branch of the Potomac River connecting Bloomington, Maryland to Mineral County, West Virginia. The sandstone railroad bridge features three full center arches, each with a 56-foot (17 m) span and a 28-foot (8.5 m) rise. It is owned and operated by CSX Transportation on its Mountain Subdivision.
The Casselman Bridge is a historic transportation structure on the Casselman River, located immediately east of Grantsville in Garrett County, Maryland. The bridge was built in 1813-1814 as part of the National Road. Historic markers posted at each end read:
Erected 1813 by David Shriver, Jr.,
Sup't of the "Cumberland Road". This 80 foot span
was the largest stone arch in America
at the time. It was continuously
used from 1813 to 1933.
The Brookeville Woolen Mill and House is a historic home and woolen mill located in Brookeville, Maryland, in Montgomery County. The complex consists of two buildings constructed of rubble masonry. The woolen mill is a small one-story structure. South of the mill are two stone worker's houses, one of which is a three-by-two-bay, 1+1⁄2-story stone house. The house was most likely constructed prior to 1783. The complex may have been built by the Riggs family, who later became well-known bankers and merchants in Washington, D.C.
Darnall Place is a historic farm complex located at Poolesville, Montgomery County, Maryland, United States. The farm complex consists of four small 18th-century stone buildings, a 19th-century frame wagon shed/corn crib, a 20th-century concrete block barn, and three late-19th- or early-20th-century frame sheds. The stone buildings are all constructed of red-brown Seneca sandstone. The one-story dwelling has a large external stone chimney on the east end. The farmstead is reminiscent of those in Europe or the British Isles.
Seneca Quarry is a historic site located at Seneca, Montgomery County, Maryland. It is located along the Chesapeake and Ohio Canal on the north bank of the Potomac River, just west of Seneca Creek. The quarry was the source of stone for two Potomac River canals: the Patowmack Canal on the Virginia side of Great Falls; and the C&O Canal, having supplied red sandstone for the latter for locks 9, 11, 15 - 27, and 30, the accompanying lock houses, and Aqueduct No. 1, better known as Seneca Aqueduct, constructed from 1828 to 1833.
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.
The Inns on the National Road is a national historic district near Cumberland, Allegany County, Maryland. It originally consisted of 11 Maryland inns on the National Road and located in Allegany and Garrett counties. Those that remain stand as the physical remains of the almost-legendary hospitality offered on this well-traveled route to the west.
Mercy Chapel at Mill Run is an historic Carpenter Gothic-style church located at Selbysport, Garrett County, Maryland. It is a one-story, one room frame structure built on an octagonal plan above a coursed stone foundation. The interior of the chapel is a fine example of local craftsmanship and is virtually unchanged since the 1870s. Two small graveyard plots lie adjacent to the chapel. It is one of the most architecturally sophisticated and well-preserved octagonal buildings in Maryland, and one of only a dozen mid-19th-century octagonal buildings surviving in Maryland.
Kaese Mill is a historic grist mill located at Accident, Garrett County, Maryland, United States. It was constructed about 1868, and is a 2+1⁄2-story frame water-powered grist mill. It is the only fully operational water-powered grist mill in Maryland. It was built by Henry August Kaese, Sr., an immigrant miller from Germany who settled in Garrett County shortly after the American Civil War.
The Drummine Farm is a historic home and farm complex located at New Market, Frederick County, Maryland, United States. The main house was constructed about 1790 and is a 2+1⁄2-story structure of uncoursed fieldstone. The house retains Georgian stylistic influences in exterior and interior decorative detailing. The farm complex structures include a stone tenant house dated 1816, and four additional fieldstone buildings from the early 19th century: a smokehouse, a water storage house, a garden outhouse, and a large bank barn. Wooden farm buildings include a calf shed and a wagon shed with corn cribs from the late 19th century, a dairy barn with three cement stave silos from the 1930s, several sheds and garages, and a large pole barn.
Kefauver Place is a historic farm complex located at Rohrersville, Washington County, Maryland, United States. It includes a log cabin built about 1820; a log barn of about 1830 with later-19th-century additions; a 19th-century timber-framed corn crib; a two-story brick house constructed around 1880; an early-20th-century masonry root cellar; and a frame summer kitchen, hog pen, chicken house, and garage all dating from about 1930. Also on the property are two fieldstone spring enclosures. It is located on a 21-acre (85,000 m2) property.
Hitt's Mill and Houses, also known as Pry's Mill, Valley Mills, Hitt House, is a historic home and mill complex located at Keedysville, Washington County, Maryland, United States. It is a five-story stone and brick structure built as a grist mill. The ground story and the first full story above ground level are constructed of coursed limestone; the upper stories are built of brick. Also on the property is a square log outbuilding with a hipped roof, a large frame bank barn, and part of a fieldstone barnyard fence. The mill and the Hitt house served as hospitals during and after the nearby Civil War Battle of Antietam.
Nicodemus Mill Complex is a historic home and mill complex located at Keedysville, Washington County, Maryland, United States. It consists of a dated 1810 2+1⁄2-story, five-bay stone house with a mid-19th-century brick service wing, the ruins of a grist mill built about 1829, and an extensive complement of 19th-century domestic and agricultural outbuildings including a stone springhouse, stone-end bank barn, brick out kitchen, frame wash house, and a stuccoed stone secondary dwelling. It is an intact representative example of the type of farmstead characteristic of the region during the 19th century.
The Gilpin's Falls Covered Bridge is a Burr arch through truss wooden covered bridge in Bay View, Cecil County, Maryland, United States, close to the town of North East. The bridge was constructed by local Cecil County bridgewright Joseph George Johnson in the autumn and winter of 1860-61 across North East Creek. The bridge was erected adjacent to and upstream of Samuel Gilpin's mills and dam and crosses the millpond formed by it. This bridge has a span of 100 feet (30 m) and a total length of 119 feet (36 m) with its shelter panel overhangs, is 13.5 feet (4.1 m) wide, and is closed to all vehicular traffic.
Best Endeavor, also known as Buena Vista Farm, is a historic home and farm complex located at Churchville, Harford County, Maryland. It is a large, multi-sectioned, mid to late 18th century, partially stuccoed stone telescope house. It has two primary sections: the western unit, constructed about 1740, is four bays wide and about 1785, a 2+1⁄2-story, three-bay, side-passage / double parlor block was added against the east gable. Also on the property and dating from the mid-19th century or earlier are a stone smokehouse, a timber-framed barn with board and batten siding, a timber-framed shed, and the ruin of a large stone and frame bank barn.
Ivory Mills is a 14-acre (5.7 ha), historic grist mill complex located at White Hall, Harford County, Maryland, United States. It consists of six standing 19th century frame buildings and structures: mill, miller's house, barn, corn crib, carriage house, and chicken house. The property also includes the ruins of a stone spring house, and the stone abutments of a frame, Federal-era covered bridge. The focus of the complex is the three-story stone and frame mill building built circa 1818. The ground story is constructed of coursed stone rubble, and the upper stories from clapboard. The family first started a mill on this site in 1781; this particular mill ceased production in the 1920s.
Whitaker's Mill Historic District is a national historic district near Joppa, Harford County, Maryland, United States. It includes three early- to mid-19th-century buildings: the 2+1⁄2-story rubble stone Whitaker's Mill built in 1851, the 1+1⁄2-story rubble stone miller's house, and the log-and-frame Magness House, begun about 1800 as the miller's house for the first mill on the site. The district also includes an iron truss bridge known as Harford County Bridge No. 51, constructed in 1878, and the oldest such span in the county. The grist mill closed operations about 1900.
Roop's Mill is a historic grist mill complex located near Westminster, Carroll County, Maryland. The complex includes a three-story, brick and stone mill, dating from about 1795 and rebuilt in 1816; the David Roop House, an 1825 stone dwelling; a log cooper's shed; an early two-part bank barn; numerous farm sheds; a late-19th century iron suspension bridge; and a bank barn dated to the 1860s. The brick mill was constructed according to the designs of Oliver Evans.
