The Beaver Island Stone Circle is a historical landmark located in remote Beaver Island, Michigan, featuring large boulders arranged in a circular pattern with unique markings. Believed by some to have functioned as a primitive calendar, the site once served as a beach during the Lake Nipissing Stage. Other significant sites on the island include Protars Tomb and the Fairy Stone Circle, which shares alignments with the Beaver Island Sun Circle. Beaver Island, being one of the most remote inhabited islands in the Great Lakes region, provides an ideal backdrop for exploring these captivating ancient structures.