Kendall-Jackson Vineyard Estates is a vineyard and winery, under the Kendall-Jackson brand, located in Santa Rosa, California in the Sonoma Valley wine country. Today, over 5,000 acres of vineyard in California's coastal regions are farmed by Kendall-Jackson. Four separate wineries house what is possibly the single largest barrel-fermentation project in the world. As of 2010 Kendall-Jackson was the highest-selling brand of "super-premium" wine.