With its amazing array of grape varieties, terroirs and winemaking cultures, Portugal is one of the most dynamic wine-producing nations in the world today. The 590,000 total acres of wine grapes produce bold reds and Ports from the Duoro River Valley, cool-climate, mineral-driven reds and whites from the Dão, ripe reds from Alentejo, crisp, refreshing whites from Vinho Verde and traditional fortified wines from Madeira. Today, established leaders and a younger generation of ambitious Portuguese vintners are striving to define new terroirs and to better exploit Portugal’s wealth of potential. (Read our cover story, “Portugal’s Crucible,” in the July 31 issue.)