They are Lower Michigan and Upper Michigan. Upper Michigan is also known as the Upper Peninsula.
Hawaii is the only U.S. state with two separate land masses, consisting of the islands of Hawaii and Oahu. These islands are distinct geographically and are part of the same state.
Michigan
Michigan is composed of two unconnected land masses, the Upper Peninsula and the Lower Peninsula. They are separated by the Straits of Mackinac, where the Mackinac Bridge spans the gap.
The Upper Peninsula of Michigan is the northern of the two major land masses and the cold water.
Isthmus
It is called a strait.
It is called an isthmus.
isthmus
a narror stip of land that joins two land masses and separates two water bodies is called an isthumus
Land bridge.
land bridge Kooper
Two land masses crunching together will form mountains E.g. Himalayas