Winery Tours: The natural beauty surrounding the Wollersheim Winery has been the backdrop for a remarkable historical heritage, one told in rich detail during the winery's guided tour. The tour points out interesting aspects of the property, which has earned a listing in the National Register of Historical Places. Just across from Prairie du Sac, Wisconsin, the Wollersheim Winery sits on a scenic hillside overlooking the Wisconsin River. This national historic site was first selected for vineyards in the 1840's by the Hungarian Count Agoston Haraszthy. Following several years of disappointment with winter damage on his vines and unfortunate politics, he followed the gold-rush west in December of 1849. Haraszthy's activities are well documented as he eventually became known as the founder of the California wine industry. After Haraszthy left, a German immigrant, Peter Kehl, took over the property and established the present buildings during the Civil War period. Peter Kehl planted conventional American grape varieties plus Riesling, which he buried every year to protect from Wisconsin's winters. Following Peter Kehl's death, Kehl's son Jacob continued the family winery, installing a still for fortifying spirits. He sold his wine in small barrels to customers as far away as the state of Maine. Jacob Kehl operated the Winery until his death in 1899. At that time, the family stopped winemaking and converted the farm to more conventional Wisconsin crops.