Is the highland rim a part of Piedmont Region?

The Highland Rim is not part of the Piedmont Region. The Highland Rim is a physiographic region of the United States that lies between the Appalachian Mountains and the Mississippi River Basin. It encompasses parts of Kentucky, Tennessee, Alabama, and Missouri. The Piedmont Region, on the other hand, is a physiographic region that lies between the Appalachian Mountains and the Atlantic Coastal Plain. It encompasses parts of Virginia, Maryland, Delaware, Pennsylvania, New Jersey, and New York.