
The Straits of Mackinac, spanned by the Mackinac Bridge, seen from the southern shore

View of the Straits from Mackinac Island
The 'Straits of Mackinac' (
pronounced , like MACK-in-aw, note the silent "c") is the strip of water that connects two of the
Great Lakes,
Lake Michigan and
Lake Huron, and separates the
Lower Peninsula of Michigan from the
Upper Peninsula of Michigan. It is a shipping lane connecting, for instance, the
steel mills of
Gary, Indiana to the iron mines of
Minnesota. Before the railroads reached Chicago from the east, it served as part of the path for immigrants into the
Midwest and
Great Plains. It is five miles (8 km) wide at its narrowest point where it is spanned by the
Mackinac Bridge. Before the bridge was built,
car ferries were used to cross the straits. Today passenger-only ferries carry people to
Mackinac Island which does not permit cars. Before
icebreakers and year-round shipping on the Lower Great Lakes, the Straits would freeze over in winter.
Most of the Straits have been set aside by the
U.S. state of
Michigan as the
Straits of Mackinac Shipwreck Preserve, a riparian public space dedicated to those personnel who were lost aboard the boats and ships that sank in these once-dangerous shipping lanes.
Lighthouses in the Straits of Mackinac include:
★ The
Old Mackinac Point Light, in
Mackinaw City, Michigan, which is open to the public
★ The
Round Island Light on
Round Island, which is not open to the public but which can be viewed from the Mackinac Island ferry channel
★ The
St. Helena Island Lighthouse, which is not open to the public but is visible from a rest area on
U.S. Highway 2 at Gros Cap, Michigan west of
St. Ignace, Michigan
★ The Bois Blanc Island Light, which is not open to the public, on the northern shore of
Bois Blanc Island
Islands in the Straits of Mackinac include the two populated islands, Bois Blanc and Mackinac Island, and the two uninhabited islands, Round Island and St. Helena Island. At 11 miles (18 kilometers) in length, Bois Blanc is by far the largest island in the Straits.
The Straits are patrolled by a detachment of the
United States Coast Guard based at Graham Point, St. Ignace. A shipping channel through the winter ice is maintained by the Coast Guard's Great Lakes
icebreaker, ''
USCGC Mackinaw'', based in
Cheboygan, Michigan near the eastern edge of the Straits. This new vessel went into service during the 2005-06 ice season.
The Straits were an important
Native American and
fur trade route. Located on the southern side of the Straits is the town of
Mackinaw City, Michigan, the site of
Fort Michilimackinac, a reconstructed French fort founded in
1715, and on the northern side is
St. Ignace, Michigan, site of a
French Catholic mission to the Indians, founded in
1671. The eastern end of the Straits was controlled by
Fort Mackinac on Mackinac Island, a British colonial and early American military base and fur trade center, founded in
1781.
External links
★
Straits of Mackinac Shipwreck
★
Lighthouses in the Mackinac Strait