"Known for its exceptional Sauvignon Blanc wines, Sancerre is found in some of the world’s best restaurants and praised by many of the top wine experts. Although Sancerre is most famous for its white wine, the appellation also produces high quality red and rosé using Pinot Noir grapes...
Three types of soils are characteristic of the Sancerre region: clay and limestone white soils, (terres blanches) situated on the hills of the most western part of Sancerrois; pebbly soils, known as caillottes; siliceous-clayey soils found in the hills east of the vineyard" - Centre Loire Valley Wines
Map adapted from: Vins de Val Loire