Henryton Heights, Maryland

Alpha is an unincorporated community in Howard County, Maryland, United States. A postal office operated from 27 February 1884 to 15 June 1915.Alpha is the site of the Mt. View Cemetery. The town between Marriottsville, and Sykesville is not recognized by the name, but is dominated by the controversial Alpha Ridge Landfill. It was home to one of Howard County's earliest bicycle clubs active in 1891.

The Shipley House was located in Alpha, Howard County, Maryland, near Marriottsville. The house was among five other buildings supporting a farm in Alpha, Maryland. The 55-acre (22 ha) property was part of a 3,440-acre (1,390 ha) land grant named Woodford patented in 1727. John Taylor acquired the land and 2,707 acres (1,095 ha) of the estate were sold to Phillip Hammond in 1744. In 1777, Charles Hammond bequeathed 1,500 acres (610 ha) of Woodford and his slaves to his son. Nathan Shipley acquired a portion and through inheritance, Joshua H. Shipley acquired 77 acres (31 ha) of the Woodford estate, raising 12 children on-site. The slave plantation harvested tobacco and grain crops. The frame farm house was constructed in 1830. Outbuildings included a wellhouse (1900), a frame shed (1835), and a bank barn (1884). John and Mary O'Mara farmed and maintained the property as Sunnyside Farm, raising hoses and cattle until sale in 1979. The farm was purchased by Howard County in 1979 as possible expansion space for the controversial Alpha Ridge Landfill project. The county boarded up the properties without maintenance. In August 1992, the firm of Goodwin and Associates determined that the deterioration that occurred in twelve years of ownership by Howard County negated any effort to preserve the property. The land was converted to the Alpha Ridge Community Park in 1994, demolishing the Shipley House and outbuildings to replace them with a complex of revenue generating ball fields and facilities.

Marriotts Ridge High School is a public High School located in Marriottsville, Maryland, United States. It is part of the Howard County Public School System. The school was named after the town of Marriottsville, and the height of its location. The pre-opening name of Marriott's Ridge was later changed to Marriotts Ridge.The school is located in northern Howard County on Maryland Route 99, just east of Maryland Route 32, and north of Interstate 70. It is approximately 15 miles west of Baltimore and 25 miles north of Washington, DC. The school was planned to be built on the grounds of the Alpha Ridge Landfill, but a 3–2 council vote in 2002 redirected the building to a site across from Mount View Middle School. Marriotts Ridge is a mirror image of both Long Reach High School and Reservoir High School. The school borders the districts for Glenelg High School, River Hill High School, Wilde Lake High School, Centennial High School, and Mount Hebron High School. In 2015, U.S. News & World Report ranked Marriotts Ridge as the No. 265 best high school nationwide and No.7 statewide on its list of "America's Best High Schools".

Howard Lodge is a historic plantation house in north-central Howard County, Maryland. The main house, built around 1750 by Edward Dorsey, son of John Dorsey, is one of the oldest plantation houses in the county. Compared to other houses of the period, the two-story brick and stone structure is larger and its interior finishes better preserved. The surviving plantation property, about 15 acres (6.1 ha), also includes early 19th-century stone outbuildings. Edward Dorsey was given ownership of seven African-American slaves by his father John Dorsey.The property was listed on the National Register of Historic Places in 2012.

Forest View is a historic building located near Marriottsville, Howard County, Maryland, United States. The farm on which this house was built was a speculative venture that was begun 1860–1861, which was rare for that time period. In time production at the farm ended and the property was subdivided. Unlike many Howard County farms that suffered the same fate, the house was preserved. It is a 2½-story frame structure with a kitchen wing that extends out the back of the house. The original block was built in 1861, and additions have subsequently been added to the house including a second story over the kitchen wing. The Gothic Revival decorative features were added in the late 19th or early 20th century. The house's final form was realized about 1936. It was listed on the National Register of Historic Places in 2017.

The Alpha Ridge Landfill (Alpha Ridge Sanitary Landfill) is a municipal solid waste landfill located in Marriottsville, Maryland, once known as the postal town of Alpha, Maryland. Alpha Ridge is the third official landfill built in Howard County, Maryland. Howard County's first landfill was New Cut in Ellicott City, Maryland which operated from 1944 to 1980 followed by Carr's Mill, operated between 1953 and 1977.

Henryton is an unincorporated community in Carroll County, Maryland, United States. It is located along the Patapsco River.

The Henryton Tunnel, located near Henryton in southern Carroll County, Maryland, is the third-oldest tunnel in the world that remains in active railroad use. Constructed by the Baltimore and Ohio (B&O) Railroad and opened around 1850, it was the first tunnel constructed on the B&O's Old Main Line. In 1865 the tunnel was widened to accommodate double track. It was rebuilt into its current form in 1903. The tunnel has brick portals and lining. The coping and footings are concrete.: 452 

Chapelgate Christian Academy (CCA) is a private Christian school located in Marriottsville, Maryland. It is affiliated with the Presbyterian Church of America.Chapelgate Christian Academy is a college preparatory school with a Christian worldview. To gain admittance to the school, a student's parent or guardian must agree with Chapelgate's statement of faith, foremost of which is the belief that the Bible is infallible and inerrant.Its high school athletic programs on the boys' side compete in the Maryland Interscholastic Athletic Association (MIAA), predominantly in the association's MIAA-C conference. Boys' basketball competes in the MIAA-B.

Waverly Mansion is a historic home located at Marriottsville in Howard County, Maryland, USA. It was built circa 1756, and is a 2+1⁄2-story Federal style stone house, covered with stucco, with a hyphen and addition that date to circa 1811. Also on the property are a small 1+1⁄2-story stone overseer's cottage and a 2-story frame-and-stone barn, and the ruins of a log slave quarter.Waverly was a property developed on land first patented by Charles Carroll of Carrollton and later part of the 1703 survey "Ranter's Ridge" owned by Captain Thomas Browne. The land was resurveyed in 1726 as "The Mistake." It was purchased by John Dorsey and deeded to his son and daughter-in-law, Nathan and Sophia Dorsey as the next owners.The property is associated with the Dorsey and Howard families. From the time it was established through the end of the Civil War, Waverly functioned as a plantation where unpaid slave labor was used for farm operations and creation of the wealth and lifestyle afforded to the Dorsey and Howard families. Through deeds, census records and an inventory taken upon the death of George Howard in 1846, information about the enslaved population at Waverly was uncovered. A 1965 article in the Ellicott City Times claimed that 999 slaves worked on the plantation at one time, but research has shown that between 7 and 25 enslaved men, women and children is more accurate. The Ellicott City Times article does not have any primary sources to back up this claim, nor is there an author's name credited to the article.

Henryton State Hospital is a now-demolished hospital complex in Marriottsville, in southern Carroll County, Maryland, just across the Howard County line. The complex was located within Patapsco Valley State Park and along its southern end runs CSX's Old Main Line Subdivision and is very close to the Henryton Tunnel. The Henryton State Hospital center, or the Henryton Tuberculosis Sanatorium as it was called, was erected in 1922 by the Maryland Board of Mental Hygiene. It was established as a facility to treat African Americans suffering from tuberculosis. This was one of the first such facilities in Maryland erected to provide African Americans with the same level of treatment as white people. Other accounts state that this was more of containment Hospital rather than a treatment facility. They contend that Henryton was used more for the exile and quarantine of tuberculosis patients. The original complex opened in 1922 and consisted of six main buildings and one utility plant. These buildings were erected between the years of 1921 and 1923. The establishment of the Henryton Sanatorium was one of the final steps in Maryland's program to treat all of the state's tubercular patients. In the late twenties and early thirties the tuberculosis rate among African Americans in Maryland was quadruple the rate among whites. This placed a heavy burden on the hospital to deal with the increasing number of patients. In 1938 the hospital was budgeted $270,000 for the construction of new buildings to house 200 more patients. A refrigerated morgue was demanded after the hospital cremated and disposed of the remains of an African American child before the parents were contacted. The new buildings roughly doubled the size of the overall facility, and several more municipal buildings added even more space to the complex. However, by the time the new buildings were completed in 1946, the tuberculosis rates had dropped, leaving much more room than was necessary.

Maryland's 7th congressional district of the United States House of Representatives encompasses almost the entire city of Baltimore and some of Baltimore County. The district was created following the census of 1790, which gave Maryland one additional representative in the House. It was abolished in 1843 but was restored in 1950 as a west Baltimore district. It has been drawn as a majority-African American district since 1973. Democrat Kweisi Mfume is the current representative, winning a special election on April 28, 2020, to finish the term of Elijah Cummings, who died in October 2019. Mfume had previously held the seat from 1987 to 1996.