This region consists of limestone plateaux at around 100m above sea level, hence its name "Bordeaux's high country". Wines of the Bordeaux Supérieur appellation are produced the vineyard zone of the Gironde. The wines must conform to rigorous quality criteria and are made from grapes from selected vineyard parcels and older vines. The red Bordeaux Supérieur is characterised by great aromatic complexity combining ripe fruits, floral aromas, spice and often a hint of oak.