Baldwin, Maryland

Hydes is an unincorporated community in Baltimore County, Maryland, United States. It is located in the Long Green Valley. The USPS has assigned Hydes the postal code 21082. Saint John the Evangelist church is located in Hydes and is the oldest Roman Catholic Church in Baltimore County. Until 1958, this community was served by the Maryland and Pennsylvania Railroad at milepost 16.8. It is also home to several wineries, including Boordy and Dejon Vineyards. Hydes is named for Samuel N. Hyde, an agronomist who developed a strain known as "Egyptian" sweet corn, canned by the F.B. Jenkins canning operation of Hydes.

Long Green Valley Historic District is a national historic district in Baltimore County, Maryland, United States. It is an approximately 6,066-acre (24.55 km2) rural agricultural area to the northeast of the city of Baltimore. The valley has a distinct physical unity created by gently rolling fields dotted with crossroads villages such as Glen Arm, Baldwin, and Hydes and farm complexes. Its architecture covers the 18th, 19th, and early 20th centuries and reflect major architectural styles popular in the United States from the Neoclassical of the 18th century to the Georgian Revival of the pre 1935 period.It was added to the National Register of Historic Places in 1982.

Fork is an unincorporated community in Baltimore County, Maryland, United States.

Hidden Valley Farm is a historic home and farm complex located at Baldwin, Harford County, Maryland, United States. It consists of a mid-19th century vernacular Greek Revival brick farmhouse with several auxiliary structures. The house is a three-story, rectangular brick dwelling with a gable roof, with a two-story wing. The house features square-columned one-story porches across the façade and both sides of the wing. Also on the property are a mid-19th century barn, summer kitchen, and smokehouse, and later wood shed and garage.Hidden Valley Farm was listed on the National Register of Historic Places in 1983.

Prospect Hill is a historic home located at Long Green, Baltimore County, Maryland, United States. It was designed by architect William Thornton and built between 1796 and 1798. It is a 2+1⁄2-story Federal style brick house.Prospect Hill was listed on the National Register of Historic Places in 1973.

Glen Arm is an unincorporated community in Baltimore County, Maryland, United States. Glen Arm lies along what is now Glen Arm Road, which was once part of Old Harford Road, one of the early routes used for conveying agricultural products from parts of Harford and Baltimore Counties and southern Pennsylvania to the port of Baltimore. Glen Arm was also served until 1958 by the Maryland and Pennsylvania Railroad (the "Ma & Pa"). In 1921, at the railroad's crossing of Glen Arm Road, what generally is recognized as the nation's first train-actuated railroad crossing signal was installed by the railroad's Superintendent of Signals Charles Adler, Jr. Adler later designed early traffic-actuated traffic lights for the City of Baltimore, and also invented the system of flashing warning lights used on aircraft.

Fallston is a census-designated place (CDP) in Harford County, Maryland, United States. The population was 8,958 at the 2010 census, up from 8,427 in 2000. Fallston is a semi-rural community consisting mostly of farms and suburban-like developments.

Bon Air is a historic home located at Fallston, Harford County, Maryland. It is a three-story dwelling of stone, stuccoed and scored in imitation of ashlar, with a steep hipped roof featuring a pronounced splay or "kick" at the eaves. It was built in 1794 by Francois de la Porte, who brought his own joiners, blacksmiths, masons, and artisans with him to recreate an exact replica of a rural seat in Northern France. It is one of the few structures in Harford County with a distinct French heritage.It was listed on the National Register of Historic Places in 1977.

Long Green is an unincorporated community in Baltimore County, Maryland, United States. Until 1958, the community was served by the Maryland and Pennsylvania Railroad at milepost 15.8. Prospect Hill was listed on the National Register of Historic Places in 1973.Long Green was once home to an Amish community. The Amish community in Long Green was founded in 1833 and lasted for 120 years, before disappearing in the 1950s. The community was founded by Lancaster County Amish, but few settlers moved to the area because Maryland was a slave state at the time. Few Amish people crossed the Mason–Dixon line, due to the Amish opposition to slavery. An Amish meetinghouse was constructed in 1899, but the community never grew large. The community dwindled in size over time, with the last Amish person dying in 1953. One of the oldest buildings in Long Green is the Wilson United Methodist Church, built in 1892 in the Gothic Revival style. A previous Methodist meeting house was built in 1839 on land donated by George Wilson, for whom the present church is named. In 1787, noted Methodist leader Francis Asbury preached in the Long Green farmhouse of Wilson's great-uncle. The church's cemetery dates back to the 1850s.

Fallston Airport (FAA LID: W42) is an airport located southeast of Fallston, Maryland, United States.

Ravenshurst, or Ravenhurst, was a historic home located at Glen Arm, Baltimore County, Maryland, United States. It was a 2+1⁄2-story Carpenter Gothic-style board-and batten house built about 1854–1857. It was an addition to an earlier stone building thought to have been built about 1800. The home burned on October 31, 1985. Ravenshurst was listed on the National Register of Historic Places in 1978.

Fallston High School is a public high school Fallston, Maryland, United States. It serves a thousand students of Harford County.