It is an essential part of life in Chanac. This huge limestone plateau stretches right up to Aveyron and is known as the “land of sheep”. The A.O.C. Roquefort cellars come here for exceptional milk from an exceptional area. The Causse de Sauveterre is famous for its unique habitat. Houses have stone vaults and flagstone roofs. This limestone material is abundant on the Causse, unlike wood.