Geography and Climate
The Douro wine region is situated around the Douro river valley and lower vallies of its tributaries Varosa, Corgo, Távora, Torto, and Pinhão. The region is sheltered from Atlantic winds by the Marão and Montemuro mountains and has a continental climate, with hot and dry summers and cold winters.
It is usually subdivided into three subregions, from the west to the east:
- Baixo Corgo ("below Corgo"), a subregion with the mildest climate and most precipitation. It has 14,000 hectares (35,000 acres) of vineyards. Although it is the subregion which was planted first, in general, it is considered to give wines of lesser quality than the other two subregions.
- Cima Corgo ("above Corgo") is the largest subregion with 19,000 hectares (47,000 acres) of vineyards, centered around the village of Pinhão, and where the majority of the famous Quintas are located.
- Douro Superior ("upper Douro") is the hottest and driest of the subregions, and stretches all the way to the Spanish border. It has 8,700 hectares (21,000 acres) of vineyards and is the source of many wines of very good quality. As it is the least accessible of the three subregions, it is the most recently planted, and it is still expanding.
Terraced vineyards are very common in the Douro region. Vineyards dedicated to Port production are usually planted on schist while areas with granite-based soils are used for table wine production.
Read more about this topic: Douro DOC
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