Berryessa Gap’s connection to the land runs deep with farming roots going back several generations. Dan Martinez, Sr., father of the owners of Berryessa Gap, was a first generation farmer of Spanish immigrants. After establishing a successful orchard business in Winters, he partnered with winemaker and wine historian Ernest Peninou in 1969 to create a grapevine rootstock nursery that would become renown in Napa and Sonoma Valley vineyards and beyond. It is from these solid roots that Berryessa Gap Winery grew.