The vineyards of the Castillejo winery are located in the municipality of Castillejo de Robledo (Soria) between 980-1060 meters above sea level, very high vineyard within the designation of origin Ribera del Duero. It has the typical climate of the plateau, dry environment, with strong temperature differences. The summers are dry and the winters rainy. The average annual temperature is around 10.8 ° C. In winter the temperatures reach -0.4ºC; while in summer the thermometers exceed 27.3ºC. The average annual rainfall is 495 mm.