Southwest Wisconsin's driftless area, including the Southwest Savanna Landscape, is uniquely different from the rest of the state. Here the bogs, marshes and many lakes so characteristic of most of the state are replaced by rolling hills and valleys and spring-fed streams. The impoundment of one of these streams in Green County has formed two small lakes. The recreational demand that developed around the lakes led in 1970 to the establishment of Cadiz Springs State Park. In 1980, the Browntown Wildlife Area and Cadiz Springs Park were merged into a state recreation area.