Church of the Holy Trinity (Churchville, Maryland)

Churchville is an unincorporated community in Harford County, Maryland, United States, situated between the county seat, Bel Air, and Aberdeen, where Aberdeen Proving Ground is located.

Churchville Presbyterian Church is a historic Presbyterian church located at Churchville, Harford County, Maryland. It consists of three harmoniously designed sections: the original one-story, four by three bay, gable-roofed brick building dated to 1820; the three-story, restrained Italianate, brick bell tower added in 1870; and the low, one-story brick church hall and office added in 1950. Located adjacent is a sequestered 4.5-acre (1.8 ha) graveyard with stones dating back to 1819. The community of Churchville, which surrounds the church, grew up around and took its name from the structure.The 1870 addition of an Italianate, brick belltower was designed by architect J. Crawford Nielson of the firm Niernsee and Neilson.It was listed on the National Register of Historic Places in 1986.

Finney Houses Historic District is a national historic district near Churchville, Harford County, Maryland, United States. It stretches along both sides of Glenville Road in central Harford County, Maryland. The district takes in four houses and their outbuildings erected by members of the locally important Finney family between 1821 and 1906.It was added to the National Register of Historic Places in 1989.

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.

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.

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 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 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).

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.

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".

Harford County Airport (FAA LID: 0W3) is a public airport located in the unincorporated community of Churchville, in Harford County, Maryland, United States. Harford County Airport is a general aviation (GA) airport in northern Maryland that serves primarily recreational pilots. There used to be three runways at Harford, two turf/grass runways 01/19 and 14/32, as well as one paved/asphalt runway 10/28. As part of a major expansion project, in September of 2018, the turf runway 14/32 was permanently closed to make room for a paved parking area and new hangars. At the same time, runway 01/19 was closed to be paved and extended from 2000 feet to 2856 feet. In April of 2020, the new runway 01/19 opened to traffic. The airport has a large sailplane/glider contingent and hosts some commercial flying activities, mainly sightseeing and flight training.

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.