Guiding Ships Through Lake Superior’s Narrow Passage Far from the mainland, near the rugged northeastern corner of Isle Royale, Passage Island Lighthouse stands watch over one of the most important shipping routes on Lake Superior. For generations of mariners, the narrow channel between Passage Island and Isle Royale was both a shortcut and a challenge. Ships traveling between Sault Ste. Marie and Thunder Bay often relied on this route, carefully navigating a passage only a few miles wide. In the days before modern navigation technology, a dependable lighthouse was essential. Since 1882, Passage Island Lighthouse has filled that role, helping… Read More »
