Settled on a limestone plateau above the Loire, the chalky soils of Les Bournais would not be out of place on Vouvray’s Première Côte (home to Clos de Bourg and Le Mont). Unlike most of Montlouis—which is on clay and flint—this four-hectare vineyard is on a pocket of clay and Bournais limestone, the stone from which it takes its name. The vines (planted in 1998) gently follow the contours of the land, right to the edge of a chalky precipice. The roots have just 35 centimetres of clay soils to burrow through before hitting the limestone bedrock, perhaps one reason we always see a distinctive smokiness in the aromas of these wines.