The Ohio River Valley AVA is an American Viticultural Area centered on the Ohio River and surrounding areas. It is the second largest wine appellation of origin in the United States (only the Upper Mississippi Valley is larger) with 16,640,000 acres (26,000 sq mi) (67,300 km2) in portions of the states of Indiana, Kentucky, Ohio and West Virginia. The area is mostly planted with hybrid grapes like Baco noir, Marechal Foch, Seyval blanc and Vidal. Of the Vitis vinifera found in the area Cabernet Franc, Cabernet Sauvignon, Chardonnay, Petit Manseng and Riesling are the most commonly found.