A 75 km long and 5 to 15 km wide estuary in Southwest France, It is created by the confluence of the two rivers Dordogne and Garonne and then flows into the Atlantic. With a surface area of 685 km², the Gironde is the largest estuary in Europe. The Gironde begins on the pointed peninsula Bec d'Ambes, formed by the two rivers, about 15 kilometers north of the city Bordeaux, The winegrowing area extends along the entire length of the left bank Médoc, which is extremely suitable for viticulture due to its permeability of the gravel and gravel soil. The best crus (layers) are those who “see the water” (adjoin the Gironde), because the sunlight is reflected by the large water surface. By storing the heat, there are very good conditions for optimal grape ripeness. Here are the six famous community appellations of the Haut-Médoc,
Limestone with the two appellations dominates on the right bank of the Gironde Blaye - Cotes de Bordeaux and Cotes de Bourg, The waters also gave the department in Southwest France the name in which the entire region Bordeaux lies. In the area of Charente-Maritime, which borders the Gironde department northwards, the terrain is slowly becoming flatter and winegrowing disappears.
The confluence of the Gironde and the Atlantic is marked by the promontory called "Pointe de Grave" in the municipality of Le Verdon-sur-Mer. Along the entire right bank of Dordogne and Gironde is considered Rive droite (right bank), along the entire left bank of Garonne and Gironde is considered Rive gauche (left bank). The large area between the romanticized rivers Garonne and Dordogne is called Entre-deux-Mers, The Gironde department is part of the large, regional IGP area Atlantique, which also enables the Bordeaux winegrowers to produce country wines is made possible.