In the township of Barsac there are three types of terroir.
Starting from the Garonne:
The geology of the Sauternes area can be summarized in five words: gravel terraces mixed with silt ; the description of Barsac in six words : limestone watershed weathered into clay soils. Sauternes is a wine area of soft steps, with various exposures but generally facing north. The Barsac wine area is a very gentle watershed facing east.
|Plateau of Haut-Barsac||Sauternes|