Largest shipwrecks on the Great Lakes Isaac M. Scott !scope="row"|"SS Charles S. Price Largest shipwrecks on the Great Lakes The Great Lakes are the largest bodies of freshwater in the world. They are five giant freshwater lakes, named Lake Superior, Lake Huron, Lake Michigan, Lake Erie and Lake Ontario. Thousands of vessels have sailed on the lakes from the late 15th century to the present day. Thousands of ships sank on the lakes from 1679 when "LaSalle"'s wooden barque the "Le Griffon" was lost, to the 1975 sinking of the giant freighter "Edmund Fitzgerald" on Lake Superior. Many of these shipwrecks were never found, so the
Lake Winnipeg algae threat the 10th largest freshwater lake in the world. The lake consists of three well-defined regions, the larger North Basin, the smaller South Basin, and the connecting body of water defined as the "Narrows", all of which are greatly affected by algae blooms. The surrounding watershed drainage basin is roughly forty times larger than the lake’s surface area, this ratio is higher than any other major lake in the world; this makes Lake Winnipeg susceptible to excessive nutrient levels. Because Lake Winnipeg holds a considerable small volume of water, the water quality is determined by manmade structures and high nutrient loading.