The Appalachians.
If you mean the eastern US, it is the Appalachian mountain range.
The Appalachians is a mountain range that runs through the eastern U.S.
The Appalachian Mountain
The main Mountain range is the Appalachian Mountains.
The Appalachian mountain range
It is the Appalachian Mountain Range.
The mountain range that covers much of the eastern U.S. is the Appalachian Mountains.
The Appalachian Mountain Range is in the eastern US.
The Appalachian Mountain Range is in the eastern US.
The Appalachian Mountain Range is in the eastern US.
The Appalachian Mountain Range is in the eastern US.
Appalachian..