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Marriottsville, Maryland facts for kids

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Marriottsville, Maryland
Unincorporated community
Country  United States of America
State  Maryland
County Flag of Howard County, Maryland.svg Howard
Elevation 93 m (305 ft)
Time zone Eastern (EST) (UTC-5)
 • Summer (DST) EDT (UTC-4)
Area code(s) 410, 443, & 667
GNIS feature ID 590745

Marriottsville is an unincorporated community in both Howard County and Carroll County, Maryland, United States. Marriottsville is located along Marriottsville Road near the Carroll County line, 10.3 miles (16.6 km) north-northwest of Columbia.


Marriottsville is named after General Richard Marriott's estate. Marriott was an heir of John Marriott of Severn who settled in Anne Arundel County in 1664. The land was originally part of a large section of land patented by Charles Carroll of Carrollton. Waverley slave plantation occupied a significant portion of the land which was known as the Howard District of Anne Arundel County. The village was home to a magnesium limestone quarry, and was known for farms such as "Prospect Hill", and School Board member Henry O. Devries (1826-1902) farm.

On 22 March 1836, a railroad car derailed on a demonstration of the new railroad technology with 40 city leaders on board. In 1866, Reese's Mill was washed out by regional flooding.

From 1965 to 1974, large tracts of Marriottsville once known as Alpha were purchased by land speculators anticipating development. In 1977 County Executive Edward L. Cochran chooses Marriottsville for a landfill site. Alpha Ridge Landfill opened in May 1980. A expansion plan proposed by Charles I. Ecker was suspended after contamination of groundwater was reported, which brought public water extensions, followed by density increases approved by the Howard County Department of Planning and Zoning for land development.

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