The vineyards cover 34 hectares with two principal soil types; "silex" and "caillotte" or chalk. Organic viticulture has been a goal of the family for a number of years; as of 2003, the entire estate is certified organic. The following year the winery was converted completely to biodynamic agriculture—to be sure, you won't find more terroir-driven Sancerre anywhere else in the appellation. *Biodynamic*