Département in southwest France with the capital Périgueux in the east of the Nouvelle-Aquitaine region. It is named after the river of the same name, which crosses the southern part of the département from east to west. It borders the department of Gironde in the southwest, with which it belongs to the Bordeaux wine region. It is also part of the IGP area Atlantique. The Dordogne is formed in the Massif Central from the confluence of the two rivers Dore and Dogne. The Dordogne flows through the Bergerac area. On its way to the north-west, the AOC areas of Castillon - Côtes de Bordeaux, Côtes de Bourg, Pomerol and Saint-Émilion are located on the right bank. The right bank along the course of the Dordogne river and the adjacent Gironde estuary is known as the Rive droite (right bank). Below the city of Bordeaux, the Dordogne merges with the Garonne river to form the large Gironde estuary, which flows into the Atlantic Ocean. The large area between the rivers Garonne and Dordogne is called Entre-deux-Mers with many AOC areas. In the Middle Ages, the winegrowing areas of the Dordogne were part of the Haut-Pays region.