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
Loire funded by government and public bodies, such as the Établissement Publique Loire (EPL), a public institution which had formerly advocated large-scale dam projects on the river. The Loire Valley () lies in the middle stretch of the river, extends for about and comprises an area of roughly . It is also known as the "Garden of France" – due to the abundance of vineyards, fruit orchards, artichoke, asparagus and cherry fields which line the banks of the river – and also as the "cradle of the French language". It is also noteworthy for its architectural heritage: in part for its