Lake Superior the Soo Locks. Lake Superior is the largest freshwater lake in the world in area (if Lakes Michigan and Huron are taken separately; "see Lake Michigan–Huron"), and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa. The Caspian Sea, while larger than Lake Superior in both surface area and volume, is brackish; though presently isolated, prehistorically the Caspian has been repeatedly connected to and isolated from the Mediterranean via the Black Sea. Lake Superior has a surface area of , which is approximately the size of South Carolina or Austria. It has a
Lake Elbert Lake Elbert Lake Elbert is a circular lake with a circular cove on its southwest side. The Polk County Water Atlas says it is sometimes known as Little Elbert, but no other sources have used this name. Lake Elbert is a natural freshwater lake with a surface area. It has ten to twelve mostly very small islands, all near shore. The largest, on the south side, is about long and about wide. It is entirely surrounded by Lake Elbert Drive. On the south side of the lake, Lake Elbert Drive is a major thoroughfare linking up on the southwest with