The longest lake in Canada is Lake Superior, which is also shared with the United States. It spans approximately 616 kilometers (383 miles) in length.
Lake Superior is part of the Great Lakes system and is renowned not just for its size but also for its vastness and depth. With a surface area of around 82,100 square kilometers (31,700 square miles), it holds more water than any other lake in North America.
Its impressive length stems from its natural formation and the geological processes that shaped the region over millions of years. Lake Superior not only serves as a crucial resource for shipping and fishing but also as a stunning natural habitat that supports various ecosystems.