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Fair Meadows is a historic home located at Creswell, Harford County, Maryland. It is a 2+1⁄2-story Second Empire–style house constructed in 1868 for the last owner of Harford Furnace, Clement Dietrich. The house is constructed of irregularly laid ashlar and features a mansard roof, cupola, dormers with rounded hoods, and stone quoins. The interior has a center hall plan and includes intricate inlay designs, black and white marble tiles in the center hall, plaster ceiling ornaments and friezes, marble mantels, and original crystal chandeliers. Also on the property are the ruins of a round springhouse, a one-story stone carriage house, a brick smokehouse, and three hip-roofed coursed rubble stone outbuildings. The estate was later home to Eastern Christian College. The house was listed on the National Register of Historic Places in 1980.On May 3, 2020, a devastating fire caused extensive damage to the building. By 2022 the remaining structure was demolished.

Creswell is an unincorporated community in Harford County, Maryland, United States. Fair Meadows was listed on the National Register of Historic Places in 1980.

Harford Furnace Historic District is a national historic district at Bel Air, Harford County, Maryland, United States. It consists of five standing structures and several archeological sites associated with the operation of the iron furnace which began about 1830 and continued to function until 1876. They cover approximately 30 acres (120,000 m2) of rolling land. The district side is both open and wooded and includes land on both sides of James Run, a small south-flowing tributary of the Bush River.It was added to the National Register of Historic Places in 1990.

Mount Adams, also known as The Mount, is a historic home and farm complex located at Bel Air, Harford County, Maryland, United States. The complex consists of a 114-acre (46 ha) working farm, originally part of Broom's Bloom, centered on a large, multi-sectioned, 2+1⁄2-story frame house built in 1817 in the Federal style. The house has an 1850, 2+1⁄2-story cross-gabled addition, connected, but an independent unit from the main house, and slightly taller in the Greek Revival style. The property include a stone bank barn, a stone-and-stucco dairy, a stone-and-stucco privy, all dating from the early 19th century, as well as a family cemetery. Its builder was Captain John Adams Webster.Mount Adams was listed on the National Register of Historic Places in 1988.

Stoney Demonstration Forest is a state forest located in Aberdeen, Maryland, United States. The forest serves as an educational resource, the main objective of which is to teach silviculture, forest management, and wildlife habitat management practices to students and landowners. The forest occupies 318 acres (129 ha) of the rural Harford county. It was originally owned by Sydney Peverly up until 1981 when the state of Maryland purchased the land. The forest consists of rock cliffs ranging from 40 to 80 feet (12 to 24 m) in height.

Broom's Bloom is a historic home located in Bel Air, Harford County, Maryland, United States. It is a two-story, frame and rubblestone, gable-roofed house, partially stuccoed and partially shingled. It took its present form from four distinct and discernible periods of growth, from about 1747 to about 1950. The oldest section is four bays by two, and has a hall and parlor plan, measuring approximately 36 by 20 feet (11.0 by 6.1 m). Also on the property is a one-story, rubblestone 18th century springhouse and a small family cemetery, which contains the earliest known grave stones in the county.Broom's Bloom was listed on the National Register of Historic Places in 1991.

Riverside is a census-designated place (CDP) in Harford County, Maryland, United States. The population was 6,425 at the 2010 census. The term "Riverside" is generally used interchangeably with "Belcamp"; both names are accepted for the U.S. Postal Service's ZIP Code of 21017. However, the original community of Belcamp is located south of U.S. Route 40, outside the Riverside CDP.

Webster's Forest is a historic home located at Churchville, Harford County, Maryland, United States. It is a stone house constructed in two sections. The pre-1800 eastern section stands three bays wide, one and a half stories tall above a high basement, with a gambrel roof. Despite severe damage by fire in 1966, exterior walls, chimney, floor structures, most of the flooring, and portions of the cornice of this section remains original. The two-bay, gable-roofed west addition appears to date from the second quarter of the 19th century.Webster's Forest was listed on the National Register of Historic Places in 1983.

The Nelson-Reardon-Kennard House, also known as the Methodist Parsonage, is a historic home located at Abingdon, Harford County, Maryland, United States. It is a two-part frame house, with a five-bay, two-story front section built about 1785 and a three-bay, one-room rear service wing. The front porch dates to 1888. It is the oldest documented frame dwelling in Harford County.The Nelson-Reardon-Kennard House was listed on the National Register of Historic Places in 1991.

Sophia's Dairy is a historic home in Aberdeen, Harford County, Maryland, United States. It is a large center-hall brick house, 64 by 45 feet (20 by 14 m), with a low stone wing, built in 1768 in the Georgian style. The interior features a double stair which extends upward on the west wall from both ends of the hall. It continues east in one short flight, then separates and parallels the lower flight to the second story hall.Sophia's Dairy was listed on the National Register of Historic Places in 1973.

Abingdon is a census-designated place in Harford County, Maryland, United States. It lies 25 miles (40 km) northeast of Baltimore on Maryland Route 7, near the Bush River, between Exits 77 (MD 24) and 80 (MD 543) of Interstate 95.

Harford County is located in the U.S. state of Maryland. As of the 2020 census, the population was 260,924. Its county seat is Bel Air. Harford County is included in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area, which is also included in the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area.