Koshkonong Lake is a large, shallow lake located in southern Wisconsin, primarily in Jefferson County. It covers approximately 3,200 acres and is known for its diverse wildlife and recreational opportunities, including fishing, boating, and birdwatching. The lake is fed by the Koshkonong River and is part of the Rock River watershed. The lake's shoreline features several parks and natural areas, making it a popular destination for outdoor enthusiasts. It is also home to various species of fish, such as bluegill and largemouth bass, attracting anglers year-round. The surrounding area includes small communities that contribute to the lake's charm and accessibility.