Welty's Mill Bridge

Ringgold is an unincorporated community and census-designated place in Washington County, Maryland, United States. Its population was 166 as of the 2010 census.

Harbaugh's Reformed Church, now non-denominational and known as Harbaugh Church, is an historic Reformed church which is located at 14301 and 14269 Harbaugh Church Road in Washington Township, Franklin County, Pennsylvania. It was added to the National Register of Historic Places in 2002.

Huckleberry Hall is a historic farm complex located at Leitersburg, Washington County, Maryland, United States. The complex includes a 2+1⁄2-story Germanic stone house built about 1784, an 18th-century stone blacksmith shop, a frame bank barn, a mid-19th-century brick secondary dwelling, and other agricultural outbuildings.Huckleberry Hall was listed on the National Register of Historic Places in 1990.

Greensburg is an unincorporated community and census-designated place in Washington County, Maryland, United States. Its population was 229 as of the 2010 census.

Rockledge is a historic home located at Hagerstown, Washington County, Maryland, United States. It is a two-story limestone farmhouse located on a hill overlooking Little Antietam Creek. It was built in three stages, beginning in the early 19th century. Also on the property is a small brick smokehouse with a pyramidal roof, a stone springhouse.It was listed on the National Register of Historic Places in 2003.

Leitersburg Historic District is a national historic district at Leitersburg, Washington County, Maryland, United States. The district is centered on this early-19th century village. The village square retains three original early 19th century brick buildings, a tavern, general store, and dwelling; as well as a late-19th century wooden frame grocery store / meeting hall. Most of the original 30 log buildings, somewhat altered, remain. The village contains a cohesive collection of architectural resources reflecting a wide variety of vernacular types and popular expressions dating from the early 19th century through the early 20th century.It was added to the National Register of Historic Places in 2003.

Leitersburg is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 523 at the 2000 census.

Edgemont is an unincorporated community and census-designated place in Washington County, Maryland, United States. Its population was 231 as of the 2010 census.

Pen Mar Park is a scenic area in Pen Mar, Washington County, Maryland. It is located on Pen Mar High Rock Road adjacent to the Mason–Dixon line.

Pen Mar is an unincorporated community and census-designated place (CDP) that is located in Washington Township, Franklin County, Pennsylvania, United States. It is situated on the Mason–Dixon line, bordered to the south by the community of Pen Mar Park in Maryland.

Pen Mar is an unincorporated community in Washington County, Maryland, and Franklin County, Pennsylvania, United States. It is one of the border towns in the United States with a portmanteau name. Pen Mar came to prominence as a resort in the 20th century after the construction of Pen Mar Park by the Western Maryland Railway. While the resort has long been dismantled, the area still has some significance in Maryland, since it is the northern starting point for the Maryland section of the Appalachian Trail.

Quirauk Mountain is the highest point on South Mountain. The 2,145-foot (654 m) peak is located in northeastern Washington County, Maryland. It lies just southwest of Fort Ritchie Military Reservation in the village of Cascade and about 1/2 mile southeast of the community of Blue Mountain. The Appalachian Trail and South Mountain State Park are about 1/2 mile to the west of the mountain's summit.