The Alcohol and Tobacco Tax and Trade Bureau (TTB) establishes the approximately 500-square mile "Champlain Valley of New York" viticultural area in Clinton and Essex Counties, New York. The Champlain Valley of New York viticultural area is not located within any other established viticultural area. TTB designates viticultural areas to allow vintners to better describe the origin of their wines and to allow consumers to better identify wines they may purchase.