Executive DirectorMason Neck, VA Built between 1755 and 1759, Gunston Hall is the estate of George Mason, one of the founders of the American republic. The property occupies 554 acres on Mason Neck overlooking the Potomac River, just outside of Lorton, Virginia, and twelve miles south of Mt. Vernon. The property includes George Mason's modest but elegant Georgian mansion, other historic and ancillary structures, extensive historical landscapes, and an educational, research, collections, and administrative center.Management of the property is vested in the private Board of Regents of Gunston Hall, Inc