Probably the most famous and famous wine-growing region California (Region North Coast ) and also the USA, The name Napa comes from the natives and probably means house. It is by far the largest part of the Napa County political district, but is often used as a synonym for it. It is mostly called Napa Valley, but does not mean Napa County that much. This is also helped by the fact that the AVA name Napa Valley may alternatively be used for wines throughout Napa County. The other AVA areas of Napa County are the second largest area of Los Carneros more or less only small enclaves within the large area with 18,000 hectares of vineyards. The 16 AVA areas are Atlas Peak, Chiles Valley, Diamond Mountain, Howell Mountain, Los Carneros, Mount Veeder, Napa Valley, Oak Knoll District, Oakville, Rutherford, St Helena, Spring Mountain District, Stags Leap District, Wild Horse Valley and Yountville.
The vineyards are mostly in the valley, the surrounding mountain slopes were only from the late 1980s increasingly developed for viticulture and used. Incidentally, the area did not turn out to be more than a decade later than the one to the west Sonoma County planted with vines. It all started with George Yount, who planted a small vineyard in the Yountville area named after him. In the 1960s, especially from the Napa Valley went from the revolution and renewal of Californian or American viticulture. The Napa Valley stretches for about 50 kilometers from San Pablo Bay in the south to St. Helena Mountain in the north. To the west it is bounded by the Mayacamas Mountains and to the east by the Coast Range. The valley is crossed by Napa River. The eponymous city of Napa is located in the south of the county.