One of the six famous communes (in addition to Listrac-Médoc, Margaux, Moulis, Pauillac and Saint-Estèphe) within the French Haut-Médoc region, which are own appellations and are allowed to use the commune name on the bottle label. The neighbouring municipality of Beychevelle is also included in the municipal appellation. The vineyards cover about 900 hectares of vines in an almost square shape. A special feature is that there is a 16-hectare enclave in the municipality, whose wines are entitled to bear the Pauillac designation of origin. It is also worth mentioning that historically, the famous Château Latour (Pauillac) would actually belong to Saint-Julien. The soils consist of a thin layer of gravel with sandy loess on an iron-rich subsoil with marl and gravel.