2481 Buena Vista Ave., Livermore | mitchellkatzwinery.com | 925.454.9463 Daily 12-5 Our award-winning wines are handcrafted, single vineyard designated, which show off the microclimate soil variations here in the historical Livermore Valley. Established in 1998, Mitchell Katz Winery is family owned and operated, and was winery #16 to open in the valley.