In 1904, the B.W. Blanchard and the John T. Johnson wrecked. Today, all four wrecks rest in shallow waters within the NOAA Thunder Bay National Marine Sanctuary, making them “great for boaters ...

Thunder Bay National Marine Sanctuary, designated in 2000, is a 4,300-square-mile underwater preserve that protects more than 100 historic shipwrecks in Lake Huron off the Michigan coast.