The demarcated region for Port wine follows the steep, winding river of the Douro. The region for centuries has had a history of viticulture created in harsh conditions, constantly flighting with the natural geography of the land. The region was founded in 1756 by the then Prime Minister, making the Douro region one of the oldest demarcated wine regions in the world. Beginning 75km east of the coastal city of Oporto at Barqueiros and stretching to the town of Barca d`Alva at the Portuguese - Spanish border. The region is then divided into three regions; Baixo Corgo (lower Corgo), Cima Corgo (Upper Corgo) and Douro Superior. Each sub region is separated by natural frontiers which gives them their own distinctive style and therefore allowing the Douro to produce a multitude of styles of Port wine.