From vineyards around the towns of Mazan, Moimoiron, Villes sur Azon, Puymeras and Saint-Didier on the southern slopes of Mont Ventoux, where the average height above sea level is three hundred metres. The soils can vary according to altitude but consist for the most part of deposits left around the base of chalky Mont Ventoux by receding seas of the tertiary period. Rich, red mediterranean soils are blended amongst the chalky debris and round stones. Vinification is adapted slightly to suit each grape variety. Nearly all parcels are lightly crushed and treated to a traditional extended fermentation in 150 and 300 hectolitre concrete vats, before ten months maturation in a combination of vats and large oak barrels.