The location of the Fairfax Stone, however, was known and clearly had been referred to as a boundary marker by both states.
The majority held that a commission of surveyors should be appointed to permanently mark the Deakins line from the Fairfax Stone to the Pennsylvania border.
The northwestern terminus of the line, the Fairfax Stone, is the source of the North Branch of the Potomac River.
But unlike that Potomac, the uncelebrated upper Potomac winds from the Fairfax Stone to the last sightings of road kill.
The survey was undertaken in 1736 (see Fairfax Stone) and the next year Fairfax returned to England to argue his case before the Privy Council.
The original Fairfax Stone, in accordance with common surveying practices of the era, was most likely simply a natural, unmarked rock selected from among the outcroppings in the area.
There have been six Fairfax Stones, one replacing the next because of weather or graffiti.
The present Fairfax Stone was dedicated on October 5, 1957.
Stanton, Richard L. Potomac Journey: Fairfax Stone to Tidewater.
William lies south of Fairfax and the Fairfax Stone and north of Thomas.