The historic Napanook Vineyard, a 124-acre site west of Yountville, was planted in 1838. This vineyard was the source of fruit for some of the finest Napa Valley wines. Estate-bottled in the spirit of the Bordeaux châteaux, Dominus Estate is dry-farmed to allow natural stress and good concentration of fruit. Grape clusters are crop-thinned to allow sun and air to pass in between, helping to achieve full maturation and soften the tannins. Only 20% to 40% new French oak barrels are used in order to limit the extraction of oak notes. To express the unique terroir, the classic Bordeaux grape varietals of Cabernet Sauvignon, Merlot, Cabernet Franc and Petit Verdot are planted with different root stocks best suited for the varying soil composition of gravel, heavy clay and loam.