Lake Wisconsin AVA
Lake Wisconsin is the first American Viticultural Area (AVA) designated in the State of Wisconsin located in its south-central region within Columbia and Dane Counties. The appellation was established as the nation's 123rd and the state's initial AVA on January 5, 1994 by the Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the petition submitted by Charles W. Dean, Viticultural Area Consultant, on behalf of Robert P. Wollersheim and JoAnn I. Wollersheim, proprietors and landowners of Wollersheim Winery near Prairie du Sac, proposing a viticultural area known as "Lake Wisconsin." The Wisconsin River and Lake Wisconsin outline the wine appellation's western and northern borders.