The Straits of Mackinac Shipwreck Preserve are divided in two by a bridge spanning how long?
Straits of Mackinac Shipwreck Preserve The Straits of Mackinac Shipwreck Preserve is a 148 sqmi state preserve in and around the Straits of Mackinac. The preserve is divided in two by the Mackinac Bridge. The waters of the preserve include the waters offshore from Mackinaw City and St. Ignace, as well as all or part of the shorelines of Bois Blanc Island, Mackinac Island, Round Island, and St. Helena Island.
Cordwood Point Cordwood Point is a promontory of Cheboygan County that extends out into Lake Huron. Located 6.5 miles (10.5 km) east of Cheboygan, it marks the east end of the "South Channel", the southernmost navigational channel of the Straits of Mackinac. The point has been subdivided into real estate for cabins and summer residences. U.S. Route 23 serves the point and its small settlement.