Geology

Sancerre is a hilly region where the vines are planted according to exposure and altitude, mainly in the West, on the marly-limestone formations of the Kimmeridgian age (from 150 to 160 million years ago), and in the East on the siliceous scree from the Tertiary age (from 35 to 55 million years ago). These multiple geological origins and different types of erosion due to siliceous rocks being more resistant than marl and limestone, result today in a great diversity of landscapes and soils.

The three main terroirs are the ‘terres blanches’ (clay-limestone white soils), located on the westernmost hills of Sancerre, the ‘caillottes’ (limestone and very stony soils), and the ‘argiles à silex’ (flint and clay soils) situated on the hills to the east of the vineyard.