D'Agostini Winery was started in 1856 by Adam Uhlinger, a Swiss immigrant. The original wine cellar, with walls made from rock quarried from nearby hills, hand hewn beams, and oak casks, is part of the present winery. Some original vines are still in production.

California Registered Historical Landmark No. 762

Plaque placed by the California State Park Commission in cooperation with the James W. Marshall Chapter No 29, E Clampus Vitus. September 16, 1961.