Along the left bank of the River Gironde, from Saint-Vivien-de-Médoc in the north to Bordeaux in the south, you will find the Médoc wine-growing region. The Médoc in turn is divided into a northern and a southern part. Bas-Médoc is the north of the Médoc.
The Médoc is an important district of the Bordeaux. The term Médoc usually refers to Bas-Médoc. The AP (Appelation Contrôlées) Bas-Médoc does not exist.