Earth's largest freshwater lake by surface area is Lake Superior. Located on the border between the United States and Canada, Lake Superior spans about 31,700 square miles (82,100 square kilometers). It is the largest of the Great Lakes and holds roughly 10% of the world's freshwater supply. Lake Superior is known for its stunning natural beauty, diverse ecosystem, and significant cultural history for the Indigenous peoples and early European explorers. The lake's maximum depth is about 1,333 feet (406 meters), making it not only the largest by surface area but also one of the deepest freshwater lakes in the world.