Adelphi Mill, Watermill in Prince George's County, United States
The Adelphi Mill stands as a two-story structure built from fieldstone and pine materials, featuring multiple grinding wheels and original millworks from 1796.
The Scholfield brothers constructed the mill in 1796, and it later became part of George Washington Riggs' Green Hill estate during the mid-19th century.
The mill serves as an educational center where visitors learn about 18th-century industrial processes and the development of early American manufacturing techniques.
Located at 8402 Riggs Road, the facility includes parking lots, picnic areas, and playground equipment for public recreation and community gatherings.
This structure remains the only surviving historic mill in Prince George's County and holds the title of largest mill in the Washington area.
Location: Prince George's County
Inception: 1796
Floors above the ground: 2
Made from material: fieldstone, pine
Website: https://mncppc.org/3010/Adelphi-Mill
GPS coordinates: 38.99280,-76.97220
Latest update: June 3, 2025 10:05
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