On the Côte des Blancs, the Chardonnay in the Grand Cru villages of Avize (30% of the assemblage) and Chouilly (15%) grow on gentle east-facing slopes where the chalk rises almost to the surface. On the Montagne de Reims, where sand and clay in?ltrate the chalky subsoil, the gradual north-facing slopes allow the Pinot Noirs of Sillery to ?ourish (25%). In the Grande Vallée de la Marne a similar soil structure, enhanced by the steeper south-facing slopes, produces the intensity of the Pinot Noir from the Grand Cru Aÿ (30%). It was also from the Grande Vallée de la Marne, in the Premier Cru village of Dizy, that the Pinot Noir grapes were selected for the red wine destined to be used in the assemblage of Grand Vin Signature Rosé 1996