Lake Wisconsin
Lake Wisconsin is a reservoir on the Wisconsin River in southern Wisconsin in the United States. It is located in Columbia and Sauk counties, approximately southeast of Baraboo and NNW of Madison. Today it is home to the Wisconsin wine appellation of the Lake Wisconsin AVA.
It was formed by the construction of a dam at Prairie du Sac, which was begun in 1911 and completed in 1914. It is part of the Wisconsin River system of reservoirs. The lake has a maximum depth of. It has an area of.
Its construction effectively ended the Fox-Wisconsin Waterway connection to the Mississippi River, although commercial traffic had ended decades before completion of the dam.
The lake provides flood control and is a popular destination for recreational boating and fishing.
The Merrimac Ferry crosses the lake at Merrimac, Wisconsin.
