Yorkville Cellars is a family-owned estate in Mendocino County's Yorkville Highlands, renowned for its commitment to organic viticulture since 1986. It is notably the only known winery to grow and bottle all eight major Bordeaux varietals—including rare grapes like Carmenere and Petit Verdot—as single-varietal wines. Founders Deborah and Edward Wallo focus on a sustainable "Old World" style, producing elegant, food-friendly wines that reflect the high-elevation, gravelly terroir of their certified organic vineyards.