The Rueda DO is located in 3 provinces of Castilla y León. Valladolid, Segovia and Avila. It occupies more than 72 municipalities, of which the best-known are. Serrada, Rueda and La Seca. In 1980, it was considered a denomination of origin (the first one in Castilla y León), thanks to its native grape, Verdejo, a fundamental strain for its white wines that has allowed it to be recognized internationally. With over 8,000 hectares of vineyards, the denominacion has 52 wineries and 1,400 grape growers. Its gravelly soil and continental climate are very favorable for the production of quality white wine. Winters are long and cold, the weather is windy and very rainy. White grapes used are mainly the native one, Verdejo, as well as Viura, Sauvignon Blanc and Palomino Fino. For red wines, the varieties cultivated are Tempranillo, Merlot, Garnacha and Cabernet Sauvignon. The wines that distinguish this denomination have fruity aromas and a colour like that of straw. The red wines are tasty in the mouth and structured.