By car
From San Francisco:
Highway 101 North over the Golden Gate Bridge, to Highway 37;Highway 37 East towards Vallejo/Napa, to Highway 121; Highway 121 North towards Napa to Highway 29 North to Calistoga.
Alternatively,
Highway 101 North over the Golden Gate Bridge, to Mark West Springs Road exit, just north of Santa Rosa;Mark West Springs Road East becomes Porter Creek Road;Continue on Porter Creek Road to stop sign;Left on Petrified Forest Road to Calistoga.
This route avoids the traffic in Napa Valley.
Yet another route from San Francisco goes via the East Bay.
Interstate 80 East across the Bay Bridge;Follow directions from Oakland, below.
From Oakland:
Interstate 80 East to Highway 37 at Vallejo;Highway 37 West to Highway 29;Highway 29 North to Calistoga.
From Sacramento:
Interstate 80 West to Highway 113 at Davis;Highway 113 North to Covell Road exit in Davis;Covell Road West to Winters. Covell Road becomes Highway 128;Highway 128 West to Highway 29 at Rutherford;Highway 29 North to Calistoga.
