There are various sub-regions within the Haut-Médoc, including St-Estèphe, Pauillac, St.-Julien and Margaux and the less well known areas of AOC Moulis and Listrac. Graves includes the sub-regions of Pessac-Léognan and Sauternes (among others), and Sauternes in turn includes the sub-region of Barsac. The Libournais includes the sub-regions of Saint-Émilion and Pomerol (among others). There is an additional wine region of Entre-Deux-Mers, so called because it lies between the Garonne and Dordogne rivers, which combine to form the Gironde. This region contains several less well known sweet wine areas of Cadillac and St. Croix de Mont.