The vineyards of Ferreira are planted throughout the Douro region, which is divided into three subregions: the Lower Corgo, the Upper Corgo and the Douro Superior. The schist soil found on the steep hills along the Douro River is essential for the character of Port wines. In the 1980?s the vineyards underwent extensive replanting and investment, with Ferreira pioneering the vertical system of planting, where vine rows are aligned uphill rather than along the contours.
