The Aldie Mill was built in 1807 to 1809 by Charles Fenton Mercer, a friend of George Washington. The mill retains the singular notariety of being the only surviving mill in Virginia that has twin, tandem overshot wheels. The mill operated as a merchant mill, buying the grain from local farmers, then grinding it into flour or cornmeal, and shipping to commercial enterprises on the East Coast and to foreign ports.

Mill at Aldie, Aldie, Loudoun County, Virginia, photo taken between 1926 and 1944. Wooden roof overtop of the two Fitz Water Wheels was to protect them from snow and ice during the winter months. Most mills that did not have the water wheel(s) located inside of the building had wooden roof over top of the wheel historically.Ted Hazen

This building was once connected to the main mill, but in the restoration or before, the intervening section was dismantled. The mill used 48' millstones, somewhat smaller in diameter than usual, to grind grain to flour producing about 8 to 12 bushels of flour an hour. This figure can be stated more impressively by saying production of 2 ton/day. The mill operated up to 1981, when it was given to the Virginia Outdoors Foundation, a organizatioon concerned with preserving natural resources and historical features related to them, by the James Douglas family, the then owners.

This building was once connected to the main mill as seen in the black & white photo; but in the restoration or before, the intervening section was dismantled.

The mill features a tour that is free, but suggested donations of $2.00 Adults and $1.00 children. It is open from late April through late October, Sundays- 12:00 noon to 5:00 pm.

The mill retains the singular notariety of being the only surviving mill in Virginia that has twin, tandem overshot wheels.

The tandem wheels of the merchant flour mill, with the country flour mill beyond.

The gate that controls the water flow to the waterwheels. The miller's house is in the background.

One of the two tandem water wheels.

The mill operated up to 1981, when it was given to the Virginia Outdoors Foundation, a organizatioon concerned with preserving natural resources and historical features related to them, by the James Douglas family, the then owners.

The Grainary, situated west of the main merchant mill structure.

There is an Aldie Stone Bridge on US 50 near the mill that is also worth checking out.