What separates the two parts of michagan?

The two parts of Michigan, known as the Upper Peninsula (U.P.) and the Lower Peninsula, are separated by the Straits of Mackinac. This narrow waterway connects Lake Huron and Lake Michigan and is spanned by the Mackinac Bridge. The bridge is a vital transportation link, allowing vehicles to travel between the two peninsulas. The geographical division creates distinct cultural and environmental differences between the two regions.