Which large Manitoba lake is the eleventh-largest freshwater lake on Earth by area?

The large Manitoba lake ranked as the eleventh-largest freshwater lake on Earth by area is Lake Winnipeg.

Lake Winnipeg covers roughly 23,750–24,514 square kilometres in Manitoba, Canada. Rankings vary slightly with measurements and whether the Caspian Sea is included, but major Canadian and international references commonly place it around eleventh among freshwater lakes by surface area. It is also Canada’s sixth-largest lake.

The lake is a remnant of the enormous prehistoric Glacial Lake Agassiz. It is surprisingly shallow for its size: its average depth is about 12 metres, while its deepest channel reaches roughly 36 metres. Its northern outlet is the Nelson River, which carries water toward Hudson Bay.

Lake Winnipeg’s watershed is far larger than the lake itself, spanning parts of four Canadian provinces and four U.S. states. Nutrient runoff has contributed to recurring algal blooms. A common mix-up is Lake Winnipegosis: despite its similar name, it is much smaller and is known as Canada’s eleventh-largest lake, not the world’s eleventh-largest freshwater lake.