Clos Du Val Wine Company, Ltd. - A winery established in 1970 and is based in Napa California. - Owns and cultivates a total of 225 acres of vineyards. - Belongs under the Stags Leap District and Yountville AVAs (American Viticultural Areas) within Napa Valley. - Grows and produces Cabernet Sauvignon, Merlot, Petit Verdot, Cabernet Franc, Sauvignon Blanc, Viognier, and Malbec.