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 Bomoseen used at other lakes. In recent years, zebra mussels have entered Lake Bomoseen after many years of attempted prevention. Lake Bomoseen Lake Bomoseen is a freshwater lake in the western part of the U.S. state of Vermont in the towns of Castleton and Hubbardton in Rutland County. It is the largest lake that lies entirely within the state's boundaries, with a surface area of approximately . The lake was formed by glaciation and has an average and maximum depth of and , respectively. It drains a watershed, has five major inlets, and empties to the Castleton River, a tributary of