Graves and its new (as of 1987) sub-region, Pessac-Leognan, is one of the most important districts of Bordeaux for both red and white wine, and where the earliest estates – see Chateau Haut-Brion, La Mission-Haut-Brion, and Pape-Clément – were established. Named after its soil type, gravel in French, Graves has particularly good drainage on which mainly Cabernet Sauvignon, as well as smaller amounts over Merlot and Cabernet Franc, is grown. Cabernet Sauvignon produces particularly good fruit on these soils and is able to transit its terroir with distinctive mineral aromas. The dry whites wines are made from a blend of Semillon and Sauvignon Blanc, the latter of which must make up at least a quarter of the blend. Most are fermented and matured in oak, of which the best examples benefit from at least a decade in the bottle.