Thomas Run Church

Kalmia is an unincorporated community in Harford County, Maryland, United States. The Husband Flint Mill Site was listed on the National Register of Historic Places in 1975.

Medical Hall Historic District is a historic home and national historic district near Churchville, Harford County, Maryland, United States. The home was constructed of stuccoed stone between 1825 and 1840 and is five bays long, two bays wide, and two and a half stories high. The façade features a centrally placed door with sidelights and a rectangular transom subdivided in a radiating pattern. Also on the property is a stone springhouse which 20th century owners have converted into a pumphouse and a stone cottage believed to be a 19th-century tenant house. The property is associated with John Archer (1741–1810), the first man to receive a degree in medicine in America. One of his sons was Congressman, judge of the circuit court, and Chief Justice of Maryland Stevenson Archer (1786–1848).It was added to the National Register of Historic Places in 1973.

Palmer State Park is a public recreation area located along Deer Creek two miles southwest of Dublin in Harford County, Maryland. The state park saw its genesis in 1965, when Gerald and Ruth Palmer donated 463 acres for use as a public park. The park's historic industrial sites include remnants of the Husband Flint Mill and Deer Creek Iron Works. The heavily forested area is open to canoeing, fishing, and hiking.

Harford Community College is a public community college in Bel Air, Maryland. It was established as Harford Junior College in September 1957 with 116 students in the buildings and on the campus of the Bel Air High School in the county seat. The Bel Air campus of 1964 occupies 332 acres (1.34 km2) and now has 21 buildings totaling over 287,000 square feet (26,700 m2).

The Hays-Heighe House is a historic home located on the campus of Harford Community College near Bel Air, Harford County, Maryland, United States. It is a five bay long, two bay deep stone house with a gable roof and massive brick chimneys on each gable, built in 1808. On the east is a five bay long, two-story stone wing. Its initial owner, Thomas A. Hays, was one of the founders of the town of Bel Air.The Hays-Heighe House was listed on the National Register of Historic Places in 1972.

Harford Technical High School (HTHS) is a four-year technical public high school in Bel Air in Harford County, Maryland, United States. The school, located near the center of the county, is across the street from Harford Community College and next to the Harford Academy (formerly the John Archer School). Harford Technical opened in 1978 as a vocational and technical school. Students in Harford County must apply to go to Harford Tech. Once entering the school, the students focus on a trade from one of the following: Construction, Manufacturing, Automotives, Computer Aided Design and Technical Drawing (Also known as Drafting, giving CADD its name), Food Preparation, Cosmetology, Agribusiness and TAM, Cyber Security, Floral Design, Landscape Architecture and Management, Printing and Graphic Arts, Nursing, and Sports Medicine. Harford Tech has one of the highest graduation rates in all of Harford County.The school has changed its name since the school was founded. It was once called "Harford Vocational Technical High School" or "Harford VoTech".

D. H. Springhouse is a historic springhouse located at Bel Air, Harford County, Maryland. It is a little gray stone building set into the base of a steep hill. This is a stone springhouse with a schoolroom above, 16.5 feet by 23 feet, with one narrow wall set into the bank over several fresh springs. It was built about 1816, and the quality of stonemasonry is notable.It was listed on the National Register of Historic Places in 1973.

Priest Neal's Mass House and Mill Site, also known as Paradice, is a historic Roman Catholic Church located at Bel Air, Harford County, Maryland. It is a stuccoed, 1+1⁄2-story stone dwelling constructed about 1743 by Jesuits for use as a mission before Roman Catholics obtained freedom of worship under the United States Constitution. The interior floor plan is unique in its combined function as Jesuit priests' residence and house of worship: an unusually wide center hall provided meeting space and was flanked by two chambers on the west and a large reception room on the east. On the banks of Deer Creek, is the site of an 18th-century mill which the priests used to generate money to support their endeavors. It is one of the oldest extant buildings associated with the Catholic Church in America.It was listed on the National Register of Historic Places in 1990.

Deer Creek is a 52.9-mile-long (85.1 km) river in Maryland and Pennsylvania that flows through the scenic areas of Harford County and empties into the Susquehanna River, roughly halfway between the Interstate 95 bridge and Conowingo Dam. Its watershed area is 171 square miles (440 km2). Its watershed area in MD (excluding water) is 145 square miles (380 km2), with 3% impervious surface in 1994. It serves as a divider between the agricultural and urban/suburban areas of Harford County.

Tudor Hall is a historic home located at Bel Air, Harford County, Maryland, United States. It is a 1+1⁄2-story Gothic Revival cottage built of painted brick. The house was built as a country retreat by Junius Brutus Booth (1796–1852) from Plates 44 and 45, Design XVII, of The Architect, by William H. Ranlett, 1847. However, Booth never lived in Tudor Hall, because he died before it was completed. His son Edwin Booth lived there only briefly on his return from California before he moved the family back into Baltimore. But his other son, John Wilkes Booth, lived there with his mother, brother Joseph, and two sisters from December 1852 through most of 1856. After the family moved out, they rented the home to the King family and later sold it to Sam Kyle and Ella Mahoney. She lived in Tudor Hall for 70 years and opened a museum. After her death the house passed through a succession of owners, including the Worthington family, who owned the Aegis newspaper. Finally the house was sold to the Foxes, who reopened Mahoney's museum. Tudor Hall was listed on the National Register of Historic Places in 1973. A modification to its listing, to decrease its boundaries, was registered in 1982. After the Preservation Association of Tudor Hall (PATH) collapsed, Tudor Hall was sold to the Bakers and later to Harford County, who are now in possession of the historic home. The house is currently the home of the Junius B. Booth Society, a group of volunteers dedicated to the preservation and interpretation of the historic home. Tudor Hall is open for tours on select Sundays from April until November and during special events hosted by the Society.

The Churchville Test Area is a United States Army facility of the Aberdeen Proving Ground, located northeast of Bel Air, Maryland (in Harford County, Maryland, U.S.). The Churchville Test Area (39.596°N 76.253°W / 39.596; -76.253) is a hilly set of cross-country road test tracks providing a variety of steep natural grades and tight turns designed to stress engines, drivetrains and suspension systems for Army vehicles, such as the M1 Abrams tanks, M2 Bradley fighting vehicle and the Humvee. The Test Area consists of 11 miles (18 km) of interconnected roads and test courses located on 250 acres (1.0 km2), with both 3-and-4-mile (4.8 and 6.4 km) closed loop courses, mud, dust and gravel surfaces, and grades ranging from 7% to 29%. On March 21, 2007, the Army celebrated the designation of a 163.5-acre (0.662 km2) buffer-zone alongside the Churchville Test Area, in conjunction with the Harford County Government, the Harford Land Trust, and the Hopkins family. Part of the US Army's Compatible Use Buffer program, under the Pentagon's environmental protection initiative, this land-use purchase was $1.4M (US).

The Dibb House is a historic home located at Bel Air, Harford County, Maryland, United States. It is a 2+1⁄2-story frame house with a gable roof and a central projecting bay with cross gable. In Victorian style, it features a myriad of porches, oriels, and bay and dormer windows. Also on the property are a shed, a barn, and an outhouse.The Dibb House was listed on the National Register of Historic Places in 1980.