Twaddell's Mill and House, Historic mill complex in Chadds Ford Township, Pennsylvania.
Twaddell's Mill and House is a mill property spanning about 120 acres with a stone main house, a sawmill foundation, root cellars, an ice house, and a spring house. The site contains multiple structures showing different periods of the estate's operation.
The land once held a Lenape village called Queonemysing before Quaker settlers built the mill complex between 1810 and 1820. The shift marks Pennsylvania's transition from indigenous peoples to early European-American settlement.
The stone construction shows building methods from the mid-1700s, preserving early American craftsmanship used in rural Pennsylvania's development.
The property sits on Rock Hill Road south of Chadds Ford near several other historical sites in Delaware County. Since it is privately owned, check access conditions before planning a visit.
The main house uses a bank design with multiple levels, where stone construction methods appear older than the building's actual date. This design worked well with the sloped terrain of the property.
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