I also visited the Fairfax Stone. This monument replaced the original 1736 boundary marker (placed by George Washington!), which delineated the 1649 boundary between the Virginia and Maryland land grants. It marks the “source” of the Potomac River (see the water flowing to the top left). 🏷️25.05C

A stone monument with a plaque is situated in a grassy area surrounded by a stone wall and trees.A historic plaque titled Fairfax Stone marks the headspring of the Potomac River and the division between Maryland and West Virginia.