Carlyle Lake
Illinois, United States
Carlyle Lake is a 25,000-acre (101.2 km2) reservoir largely located in Clinton County, Illinois, United States, with smaller portions of the lake within Bond and Fayette counties. It is the largest man-made lake in Illinois, and the largest lake wholly contained within the state.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).