The Vega Sicilia wineworks are located at Valbuena in the province of Valladolid, on a fertile plain that follows the course of Ribero Duero. The river forms the northern boundary of the thousand hectare property, the southern limit is set by woods, which stand on the slopes leading to the plain. Soils are clay limestone with brown grey streaks and an alluvial area. There are 250 hectares of vineyard, mostly Tempranillo de la Ribera, with further plantings of Cabernet Sauvignon, Merlot and Malbec. Vintage 1995 was a mostly Tempranillo wine with a seventh of Cabernet Sauvignon, matured up to ten years in a combination of seasoned and new, oak casks and large capacity wooden vats.