Superior National Forest spans northeastern Minnesota across the Arrowhead Region, covering more than 3.9 million acres of forest and water within the greater Boundary Waters region. Shaped by glaciers on the Canadian Shield and Superior Upland, it contains thousands of lakes and streams, exposed bedrock, thin soils, and features including the Sawtooth Mountains, Misquah Hills, Eagle Mountain, and the Laurentian Divide. Its woods and waters support diverse plant and animal life, including one of the lower 48 states’ largest gray wolf populations and exceptionally rich birdlife. Long used as a travel corridor, it remains important for recreation, wilderness travel, and ongoing debates over mining and water protection.