Established in 1858, Gundlach Bundschu is a family-owned sustainable vineyard and winery. Now under the sixth generation of family leadership, the tradition of great Sonoma wine tasting continues with good times and great people to match. Come on over to spend a few hours getting to know our sustainably-farmed estate, our cool climate wines, and the people that make Gundlach Bundschu unique. Just five minutes from the historic Sonoma Plaza, our location at the foot of the Mayacamas Mountains along the Napa-Sonoma border is convenient for visitors on either side. Click here for directions. We look forward to welcoming you on Rhinefarm and to the oldest family-owned winery in California… and the most fun!