Loire Valley (wine) (where Pouilly-Fumé is made) sit on opposite sides of the Loire river with Sancerre being about to the northwest of Pouilly. The "Fumé" is said to come from the "silex" flint interspersed with the limestone in the area that can give a smoky gunflint note to the wine. Another possibility for the name is the early morning fog created by the Loire river that can blanket the vineyards. Wines labeled with just Pouilly or Pouilly-sur-Loire are often made from the Chasselas grape. Unlike many areas of France, the Sancerre region is heavily mechanized with the use of mechanical harvesting rather
Loire of the estuary), and the beaches of Le Croisic and La Baule along the coastline. Its main tributaries include the rivers Maine, Nièvre and the Erdre on its right bank, and the rivers Allier, Cher, Indre, Vienne, and the Sèvre Nantaise on the left bank. The largest tributary of the river is the Allier, in length, which joins the Loire near the town of Nevers at . Downstream of Nevers lies the Loire Valley, a UNESCO World Heritage Site due to its fine assortment of castles. The second longest tributary is the Vienne which joins the Loire at Candes-Saint-Martin at