The Mackinac Bridge is a suspension bridge that connects the Upper and Lower peninsulas of the U.S. state of Michigan. It spans the Straits of Mackinac, a body of water connecting Lake Michigan and Lake Huron, two of the Great Lakes. Opened in 1957, the 26,372-foot-long bridge is the world's 27th-longest main span and is the longest suspension bridge between anchorages in the Western Hemisphere. The Mackinac Bridge is part of Interstate 75 (I-75) and the Lake Michigan and Huron components of the Great Lakes Circle Tour across the straits; it is also a segment of the U.S. North Country National Scenic Trail. The bridge connects the city of St. Ignace to the north with the village of Mackinaw City to the south.

Mackinaw City is a village at the northernmost point of the Lower Peninsula of Michigan, United States. Divided between Cheboygan and Emmet counties, Mackinaw City is located at the southern end of the Mackinac Bridge, which carries Interstate 75 over the Straits of Mackinac to the Upper Peninsula. Mackinaw City, along with St. Ignace, serves as an access point to Mackinac Island. For these reasons, Mackinaw City is considered one of Michigan's most popular tourist attractions.