The Napa Valley is one of the US most famous wine making areas. The Napa Valley wine county is found in the San Pablo county area, of the San Francisco Bay Area, and has a population just shy of 135,000 people. It is synonymous with some of the finest wines in the world, and enjoys a beautiful climate that is just right for grapes growing and wine making.
Napa Valley has a few protected eco-systems such as San Pablo Bay National wildlife Refuge, and the East Napa Reservoir.