where is napa valley located
The Napa Valley Wine Trainâs route runs through one of the top wine growing regions in the world. The combination of Mediterranean climate, geography, and geology of the Valley are conducive to growing quality wine grapes. The Napa Valley is located in Northern California, about 50 miles northeast of San Francisco and about 60 miles west of Sacramento. The Napa Valley is 30 miles long and 5 miles across at its widest point.