In the Est sector and on the hillside of Renard, as its name indicates it, the soil is composed by the " Sand of Fox ", a calcareous sand on molasse of Fronsadais, typical of the village of La Rivière.
By some called also " sand with rabbit ", this white soil is adapted to the culture of the vineyard and this is the soil on which wine-plants suffer most: produced wines are characteristic, flexible and of a big delicacy, they have not the same concentration as on the other part of the vineyard but assure the cuvée blending a big nobility.