Port wine be labelled as "port" or "Porto". In the United States, wines labelled "port" may come from anywhere in the world, while the names "Oporto", "Porto", and "Vinho do Porto" have been recognized as foreign, non-generic names for port wines originating in Portugal. Port is produced from grapes grown and processed in the demarcated Douro region. The wine produced is then fortified by the addition of a neutral grape spirit known as aguardente in order to stop the fermentation, leaving residual sugar in the wine, and to boost the alcohol content. The fortification spirit is sometimes referred to as brandy but
Wine Country (California) Tourists come to the region not only for wine tasting, but also for hiking, bicycling, hot air ballooning, and historic sites, as well as the extensive culinary choices. Numerous notable chefs and restaurateurs are present in the Wine Country, including Thomas Keller, John Ash, and Sondra Bernstein. Besides the obvious winery attractions, the Wine Country is known for the Sonoma County coastline along the Pacific Ocean, the Russian River valley, redwoods, hot spring baths, petrified forests and other natural areas. The Wine Country tourism boom has its downside, exemplified by traffic congestion on State Route 29, particularly on summer weekends,