A Private Lighthouse on the St. Marys River Round Island Light sits quietly on Round Island in the St. Marys River, just about a mile from the Ontario border. While many Michigan lighthouses are open to the public or managed by preservation groups, this one tells a different story. It tells a story of river traffic, changing technology, and a remarkable private restoration that gave new life to a long-darkened light. Guiding Ships Between Two Great Lakes The St. Marys River serves as the vital connection between Lake Superior and Lake Huron. After the Soo Locks opened in 1855, ship… Read More »












