Coteaux du Layon the Loire, in the Touraine subregion. In comparison to sweet Vouvray, Coteaux du Layon wines tend to be more full-bodied, often sweeter, and slightly lower in acidity. Coteaux du Layon Coteaux du Layon is an "Appellation d'origine contrôlée" (AOC) for sweet white wine in the Loire Valley wine region of France. Coteaux du Layon is situated in the Anjou district of the region, along the river Layon, which is a tributary of the Loire River. Six of the villages (communes), namely Beaulieu-sur-Layon, Faye-d'Anjou, Rablay-sur-Layon, Rochefort-sur-Loire, Saint-Aubin-de-Luigné and Saint-Lambert-du-Lattay are allowed to add their name to that of the appellation. Usually,
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