Probably the most famous and best-known wine-growing area in California (North Coast region) and also in the USA. The name Napa comes from the Native Americans and probably means house. It is by far the largest part of the political district Napa County, but is also often used as a synonym for it. Most of the times, one says Napa Valley and does not mean Napa County so rarely. The fact that the AVA designation Napa Valley can be used alternatively for wines from the entire Napa County also contributes to this. The other AVA areas of Napa County, apart from the second largest area Los Carneros, are more or less only small enclaves within the large area of 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.