Loire Valley (wine) the AOC, VDQS and Vin de Pays systems. There are two generic designations that can be used across the whole of the Loire Valley. The "Crémant de Loire" which refers to any sparkling wine made according to the traditional method of Champagne. The "Vin de Pays du Jardin de la France" refers to any varietally labeled wine, such as Chardonnay, that is produced in the region outside of an AOC designation. Sauvignon blanc and Pinot noir are the principal grapes of this region that is centered around the appellation of Sancerre and Pouilly-Fumé. The two towns of Sancerre and Pouilly-sur-Loire
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