The Loire Valley is France's longest wine region, stretching from the Atlantic coast inland. In the west, Muscadet (Melon de Bourgogne) dominates — a light, saline white wine. In the centre lie Sauvignon Blanc-based Sancerre and Pouilly-Fumé, known for their minerality. Chinon and Bourgueil produce light reds from Cabernet Franc. Alsace in the north-east is distinctly different: the region is sunny and dry thanks to the Vosges mountains, and wines are labelled by grape variety — unusual in the Old World. Riesling, Gewurztraminer, and Pinot Gris are the key varieties. Alsace Grand Cru is dry; Vendanges Tardives and SGN are sweet styles.