Loire Valley (wine) a variety of limestone with excellent drainage that is known as tuffeau which is the same material used to build many of the famous Loire Valley Châteaux. The area around Chinon, Bourgueil and Saint-Nicolas-de-Bourgueil produces the majority of the Loire Valley's red wine based on the Cabernet franc grape—known in this areas as "Breton". The wines of the Chinon area are the softest and rich expression of the grape while the Bourgueil area produces more tannic and firm wines. The St-Nicolas-de-Bourgueil area produces the lightest colored wines. In the 19th century, the wines of the Chinon area were compared favorably
Indre-et-Loire Indre-et-Loire Indre-et-Loire () is a department in west-central France named after the Indre and the Loire rivers. Indre-et-Loire is one of the original 83 departments created during the French Revolution on 4 March 1790. It was created from the former province of Touraine. Tours, the departmental prefecture, was a centre of learning in the early Middle Ages, having been a key focus of Christian evangelisation since St Martin became its first bishop in c. 375. From the mid-15th century, the royal court repaired to the Loire Valley, with Tours as its capital, and at the confluence/crossing-point of the Loire and