Big Flat Lake is a lake located in Clinton County, Illinois. It appears on the Addieville USGS 7.5-minute topographic quadrangle. The nearest populated place is Covington, approximately 2.9 miles to the SSE.
Clinton County · Illinois
Big Flat Lake is a lake located in Clinton County, Illinois. It appears on the Addieville USGS 7.5-minute topographic quadrangle. The nearest populated place is Covington, approximately 2.9 miles to the SSE.