Bordeaux in the mid-first century, to provide wine for local consumption, and wine production has been continuous in the region since. Bordeaux now has about of vineyards, 57 appellations, 10,000 wine-producing châteaux and 13,000 grape growers. With an annual production of approximately 960 million bottles, Bordeaux produces large quantities of everyday wine as well as some of the most expensive wines in the world. Included among the latter are the area's five "premier cru" (first growth) red wines (four from Médoc and one, Château Haut-Brion, from Graves), established by the Bordeaux Wine Official Classification of 1855: The first growths are: Both
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