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
Flathead Lake pressure on the ecologically similar threatened bull trout. Since the inception of this event in 2002, over 402,000 lake trout have been harvested. In addition to these commonly-pursued game fish, the lake is also home to other native species that currently aren't actively managed by government fish and wildlife agencies, including the Longnose Sucker, Redside Shiner, and Slimy Sculpin. Flathead Lake Flathead Lake (Salish: člq̓etkʷ ) is a large natural lake in northwest Montana, and is the largest natural freshwater lake by surface area that is west of the source of the Mississippi River in the contiguous United States. The