Bordeaux red and white wines are made in Bordeaux. Red Bordeaux is called claret in the United Kingdom. Red wines are generally made from a blend of grapes, and may be made from Cabernet Sauvignon, Merlot, Cabernet Franc, Petit verdot, Malbec, and, less commonly in recent years, Carménère. White Bordeaux is made from Sauvignon blanc, Sémillon, and Muscadelle. Sauternes is a sub-region of Graves known for its intensely sweet, white, dessert wines such as Château d'Yquem. Because of a wine glut (wine lake) in the generic production, the price squeeze induced by an increasingly strong international competition, and vine pull schemes,
Bordeaux wine vineyards were ruined by phylloxera infestations. The region's wine industry was rescued by grafting native vines on to pest-resistant American rootstock. The major reason for the success of winemaking in the Bordeaux region is an excellent environment for growing vines. The geological foundation of the region is limestone, leading to a soil structure that is heavy in calcium. The Gironde estuary dominates the regions along with its tributaries, the Garonne and the Dordogne rivers, and together irrigate the land and provide an Atlantic Climate, also known as an oceanic climate, for the region. Bordeaux lies at the center of the