Sancerre (wine) up the eastern most extension of the Loire Valley. The area is more than 300 miles (483 kilometers) from the Atlantic Coast and the Loire region of Muscadet, and is actually closer to the Champagne wine region than it is to the Middle Loire city of Tours and the Vouvray and Chinon AOCs. The distance from the Atlantic gives this region more of a continental climate than typical of the rest of the Loire with short, hot summers and long, cold winters that may extend the threat of frost damage into early spring. The most dominating geographical influence of Sancerre
Tuffeau stone Tuffeau stone Tuffeau stone — in French, simply tuffeau or tufeau — is a local limestone of the Loire Valley of France. It is characterized as a chalky or sandy, fine-grained limestone, white to yellowish-cream in appearance, and micaceous (containing some white flakes of mica, or muscovite). The soft stone is extracted from numerous quarries and has made a major mark on the architectural landscape of the Loire and its tributaries — especially the valley's world-famous chateaux. Tuffeau dates to the Mesozoic era (Upper Cretaceous Turonian stage). The Loire Valley formed the floor of a vast sea 90 million years