The Driftless Area is a unique region in the upper Midwest of the United States, primarily located in parts of Wisconsin, Minnesota, Iowa, and Illinois. It is characterized by its rugged terrain, deep river valleys, and steep hills, which were not shaped by the last glacial period, unlike much of the surrounding landscape. This area is known for its rich biodiversity and distinct ecosystems. The Driftless Area is home to several important rivers, including the Mississippi River and the Wisconsin River, which provide habitats for various wildlife species. The region also features numerous parks and natural areas, making it a popular destination for outdoor activities such as hiking, fishing, and birdwatching.