The Loire Valley wine region includes the French wine regions situated along the river Loire from the Muscadet region near the city of Nantes on the Atlantic coast to the region of Sancerre and Pouilly-Fumé just southeast of the city of Orléans in north central France. In between are the regions of Anjou wine, Saumur, Bourgueil, Chinon, and Vouvray. The Loire Valley itself follows the river through the Loire department to the river's origins in the Cévennes but the majority of the wine production takes place in the regions noted above.
The Loire (lwɑːr , USalsoluˈɑːr , lwaʁ; Léger ˈledʒe; Lêre; Liger; Liger) is the longest river in France and the 171st longest in the world. With a length of , it drains , more than a fifth of France's land, while its average discharge is only half that of the Rhône. It rises in the southeastern quarter of the French Massif Central in the Cévennes range (in the department of Ardèche) at near Mont Gerbier de Jonc; it flows north through Nevers to Orléans, then west through Tours and Nantes until it reaches the Bay of Biscay (Atlantic Ocean) at Saint-Nazaire.
Sancerre is a French wine Appellation d'origine contrôlée (AOC) for wine produced in the area of Sancerre in the eastern part of the Loire valley, southeast of Orléans. Almost all of the appellation lies on the left bank of the Loire, opposite Pouilly-Fumé. It is well regarded for and primarily associated with Sauvignon blanc. Some Pinot noir is also grown, accounting for around 20% of the region's production, making mostly light red wines under the designation of Sancerre Rouge.
Sauvignon blanc is a green-skinned grape variety that originates from the city of Bordeaux in France. The grape most likely gets its name from the French words sauvage ("wild") and blanc ("white") due to its early origins as an indigenous grape in South West France. It is possibly a descendant of Savagnin. Sauvignon blanc is planted in many of the world's wine regions, producing a crisp, dry, and refreshing white varietal wine. The grape is also a component of the famous dessert wines from Sauternes and Barsac.