Lake Superior National Marine Conservation Area Lake Superior National Marine Conservation Area Lake Superior National Marine Conservation Area is a National Marine Conservation Area (NMCA) on the north shore of Lake Superior in Ontario, and is a unit of the national park system. Established on September 1, 2015, it is the largest freshwater marine protected area in the world. Although national marine parks and a reserve had been created previously, and managed as NMCAs, this was the first area in Canada to be designated a "National Marine Conservation Area" as defined by the Marine Conservation Areas Act. Plans to create it were first announced by Canadian
Lake Michigan–Huron of the hydrologic connectivity through the Straits, some sources have considered the total area and volume of Lake Michigan–Huron when placing this system in a global or regional context. When Lake Michigan–Huron is treated as a single entity, it is the largest freshwater lake by surface area in the world. Notes Further reading Lake Michigan–Huron Lake Michigan–Huron (also Huron–Michigan) is the combined waters of Lake Michigan and Lake Huron, which are joined through the wide, 20-fathom (120 ft; 37 m) deep, open-water Straits of Mackinac. Huron and Michigan are hydrologically a single lake because the flow of water through the