The Apostle Islands, located at the western end of Lake Superior, were formed by glaciers during the Ice Age.

The Apostle Islands are a collection of twenty-one islands in Lake Superior, close to the Wisconsin coast. During the last Ice Age, glaciers sculpted these islands, creating their rocky, picturesque cliffs, sandy beaches, and thick woods. The Apostle Islands are a well-liked location for outdoor pursuits like hiking, kayaking, and boating because of their varied animals and well-known natural beauty. The Apostle Islands National Lakeshore, which safeguards the region's distinctive ecosystems, historical landmarks, and lighthouses, is also located on the islands.