Domaine Raveneau is the northernmost of the most important communes of the Medoc and borders Pauillac on its southernmost border, width only a gully and stream separates it from Ch. Lafite. to the north lies the Bas-Medoc. St Estephe is defined by the depth of its gravel, which is ubiquitous but of varying depths and occasionally very shallow, when clay predominates. This keeps the soil cooler and wetter than its counterparts so that the wines can appear fresh in lighter vintages, but superbly successful in hot, dry years. The best chateaux in the south of the commune have the deepest soil and the thickest graves. Cos d'Estournel has an exceptional terroir with its vineyards being located on a south-facing ridge of gravel with excellent drainage. St Estephe is the least gravelly of main Medoc communes and in the north of the commune the vineyards are heavier and more clay-based leading to a rustic style of wine being produced.
Cos (Ch. Cos d'Estournel), Ch. Montrose, Ch. Calon-Segur, Ch. Lafon-Rochet, Ch. Les Ormes de Pez, Ch. Beau-Site, Ch. Cos Labory, Ch. Phelan-Segue