The Mackinac Bridge crosses the Straits of Mackinac between Michigan’s Lower and Upper Peninsulas.
The Straits of Mackinac is the body of water connecting Lake Michigan and Lake Huron, two of the Great Lakes, and its width at the point of the Mackinac Bridge crossing is 4 miles (or 6.4 kilometers).
At the south end of the bridge is the village of Mackinaw City, and the city of Saint Ignace is located at the north end.
