Howell Mountain received its designation as an AVA in 1983, and is a sub-appellation of the Napa Valley AVA. Howell Mountain is located on 14,000 acres in the Vaca Range on the northeast side of Napa Valley. Most vineyards on the Howell Mountain are planted between 1,400 feet and 2,200 feet placing them above the fog and cool winds from San Pablo Bay. The soil in the appellation is volcanic with good drainage, causing the vines to struggle and place all of their efforts into the fruit. The region is known for Cabernet Franc, Cabernet Sauvignon, Chardonnay, Grenache, Malbec, Merlot, Petit Verdot, Petite Sirah, Sauvignon Blanc, and Zinfandel.