Grand-Puy-Lacoste is situated in the terroir of Pauillac, one of the Médoc's six communal appellations along the Gironde estuary's left bank.

The Pauillac appellation is limited to the communal district covering 2,274 hectares. It boasts 18 properties classified in 1855 (around 85% of the appellation's total production). The commune is separated from Saint-Estèphe to the north by the marshy area of Breuil, and from Saint-Julien to the south by the hollow formed by the Juillac stream.

The plateau of Grand-Puy is west of the village, above the hamlet of Bages. This outcrop of the terrain (called a "puy" in the old local dialect) rises to around 20 meters above sea level.

The site possesses a number of major benefits: the quality of the soil, a favorable climate, the experience and expertise of its people. The result is a unique conjunction of forces...