Charles County is a county in Southern Maryland. As of the 2020 census, the population was 166,617. The county seat is La Plata. The county was named for Charles Calvert (1637–1715), third Baron Baltimore. Charles County is part of the Washington metropolitan area and the Southern Maryland region.
Port Tobacco, officially Port Tobacco Village, is a town in Charles County, in southern Maryland, United States. The population was 13 at the 2010 census, making Port Tobacco the smallest incorporated town in Maryland.
North Potomac is a census-designated place and unincorporated area in Montgomery County, Maryland, United States. It is located less than 5 miles (8.0 km) north of the Potomac River, and is about 20 miles (32 km) from Washington, D.C. It has a population of 23,790 as of 2020.
Travilah is a United States census-designated place and an unincorporated area in Montgomery County, Maryland. It is 17.28 square miles (44.8 km2) located along the north side of the Potomac River, and surrounded by the communities of Potomac, North Potomac, and Darnestown—all census-designated places. It had a population of 11,985 as of the 2020 census.
Williamsport is a town in Washington County, Maryland, United States. The population was 1,868 at the 2000 census and 2,137 as of 2010.
Point of Rocks is an unincorporated community and census-designated place (CDP) in Frederick County, Maryland, United States. As of the 2010 census it had a population of 1,466. It is named for the striking rock formation on the adjacent Catoctin Mountain, which was formed by the Potomac River cutting through the ridge in a water gap, a typical formation in the Appalachian Mountains. The formation is not visible from the town and can only be seen from boats on the river, or from the southern bank of the river in Virginia.
Oxon Hill is an unincorporated area and census-designated place (CDP) in southern Prince George's County, Maryland, United States. Oxon Hill is a suburb of Washington, located southeast of the downtown district and east of Alexandria, Virginia. It contains the new 300-acre (120 ha) National Harbor development on the shore of the Potomac River.
Antietam National Battlefield is a National Park Service-protected area along Antietam Creek in Sharpsburg, Washington County, northwestern Maryland. It commemorates the American Civil War Battle of Antietam that occurred on September 17, 1862.
Burlington is a census-designated place (CDP) in Mineral County, West Virginia, United States, located along U.S. Route 50 where it crosses Pattersons Creek. As of the 2020 census, its population was 131. It is part of the Cumberland, MD-WV Metropolitan Statistical Area. The ZIP code for Burlington is 26710.
Buckeystown is an unincorporated community and census-designated place (CDP) in Frederick County, Maryland, United States. As of the 2010 census the population was 1,019. Buckeystown Historic District and Buckingham House and Industrial School Complex were listed on the National Register of Historic Places in 1982. Carrollton Manor was listed in 1997. Former Congressman Roscoe Bartlett lives on a farm in the town.
Flintstone is an unincorporated community and census-designated place (CDP) in Allegany County, Maryland, United States. As of the 2010 census it had a population of 177. It is part of the Cumberland, MD-WV Metropolitan Statistical Area.
Port Republic is a small, rural unincorporated community located at the crossroads of MD routes 2/MD 4, MD 264, MD 509, MD 765, and Parkers Creek Road in Calvert County, Maryland, United States. It is approximately five miles south of Prince Frederick, the county seat of Calvert County.
Pomfret is a census-designated place in Charles County, Maryland, United States. As of the 2020 census, it had a population of 514. There are five properties in the area that are on the National Register of Historic Places. The origins of the settlement go back to at least 1666.
Harmony Hall, located in Fort Washington, Maryland, is managed by the United States National Park Service as part of the National Capital Parks-East system. It has been a National Park Service site since 1966. Harmony Hall is a 2+1⁄2-story Georgian country house built of red brick during the eighteenth century. It is surrounded by 65 acres (26 ha) of land on Broad Creek, a Potomac River tributary.
The B & O Railroad Potomac River Crossing is a 15-acre (6.1 ha) historic site where a set of railroad bridges, originally built by the Baltimore and Ohio Railroad, span the Potomac River between Sandy Hook, Maryland and Harpers Ferry, West Virginia. The site was added to the National Register of Historic Places on February 14, 1978 for its significance in commerce, engineering, industry, invention, and transportation.
St. Francis Xavier Church and Newtown Manor House Historic District is the first county-designated historic district in Saint Mary's County, the "Mother County" of Maryland and is located in Compton, Maryland, near the county seat of Leonardtown. The district marks a location and site important in the 17th-century ecclesiastical history of Maryland, as an example of a self-contained Jesuit community made self-supporting by the surrounding 700-acre (2.8 km2) farm. The two principal historic structures were added to the National Register of Historic Places in 1972. Archaeological remains associated with the site date back to the early colonial period, mid-17th century.
Westover is an unincorporated community in Somerset County, Maryland, United States. It is located on Maryland Route 413 near its terminus at U.S. Route 13. Owing to its central location in Somerset County, Westover is home to many important services.
Croom is an unincorporated community and census-designated place in Southern Prince George's County, Maryland, United States. As of the 2020 census it had a population of 2,720. Croom largely consists of former tobacco farms and forests converted to Washington bedroom subdivisions such as nearby Marlton. The main part of Patuxent River Park is in Croom.
Knoxville is an unincorporated community in Frederick and Washington counties, Maryland, United States. The Robert Clagett Farm and Magnolia Plantation are listed on the National Register of Historic Places.
The Spring Brook House is a historic brick building located at 161 James Street in the town of Morristown in Morris County, New Jersey. Part of the Morristown Multiple Resource Area (MRA), it was added to the National Register of Historic Places on November 13, 1986, for its significance in architecture and commerce. The house is currently a retreat, the Loyola Jesuit Center in Morristown.
