Ten kilometers east of Saint-Emilion, in the northern extension of the Castillon vineyard, the Francs vineyard is an enclave that concerns three municipalities located between the Dordogne department to the east and the Lussac and Puisseguin vineyards Saint-Emilion to the west. Francs is the most continental appellation in Bordeaux. It is located on clay-limestone and marly hillsides among the highest in the Gironde.