"92001186" . "744622.0"^^ . . "Town of Potomac"@en . . "Potomac, Virginia, is an extinct incorporated town formerly located in Arlington County, Virginia (then called Alexandria County). A planned community, its proximity to Washington D.C. made it a popular place for employees of the U.S. government to live. Potomac was located adjacent to the massive Potomac Yard of the Richmond, Fredericksburg and Potomac Railroad."@en . "1894Z"^^ . . "1992-09-10Z"^^ .