The Ribera del Duero D.O. is located in the Duero River basin, in the southeast of Castilla and Leon. More than 240 wineries and 8,000 vine growers make up the Ribera del Duero today. Its more than 20,700 hectares of vines represent 20% of the total wine production in Spain. The Tempranillo is the main grape of the area and it is present in more than 75% of wines from Ribera del Duero.