Saint-Estèphe, a prestigious Bordeaux appellation in the northern Médoc, is known for robust, full-bodied red wines primarily from Cabernet Sauvignon, with Merlot and smaller amounts of Cabernet Franc and Petit Verdot. These wines are deeply coloured, with firm tannins and rich flavours of dark fruits, earth, and spice, making them structured and age-worthy. Top producers include Château Cos d'Estournel, Château Montrose, and Château Calon-Ségur. The region's gravelly and clay-rich soils contribute to the wines' distinctive character and complexity.