blue ridge
The Continental Divide in the Rocky Mountains is the dividing line for water flowing west or east.
The natural boundry between these is called the Fall Line. The Fall Line marks the eastern boundry of the coastal plains whereas to the west the Piedmont boundry is marked by the Blue Ridge Mountains.
West - London sub region -'s population is 1,600,000.
You need to be more specific. The west region of what? The US? Europe? Asia?
The Fall Line. http://www.answers.com/topic/fall-line
the piedmont region is east of the fall line
PIEDMONT.
Costal plane
The fall line
the answer is it is where the fall line is
a fall line
Coastal Plain
Piedmont reigon
California is on the west coast.
Fall line.
east
an imaginary line that the Piedmont region in Georgia becomes the Coastal Plain.