1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.
2Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.
The town and its vineyards are separated from the area of Sauternes to the south by the Ciron river, whose cooling effect is of key importance in encouraging the annual action of the Botrytis fungus on the Sémillongrapes. The area is marginally flatter than its neighbour and its wines are considered to be marginally lighter. The area is however permitted to use the Sauternes appellation.