The Piedmont.
the coastal plains
the coastal plains
The eastern coastal plain lies between the Bay of Bengal and the Eastern ghats
the great plains
The Great Plains, the Mississippi River system, and the eastern woodlands all lie between the Rocky Mountains and the Appalachian Mountains.
The Great Plains.
The Great Plains is an area of flat land that lies near the Mississippi River. It is approximately 1,988 miles in length.
The Coastal plain is different from an interior plain because a coastal plain lies along the sea coast. Coastal plains also have low relief. The interior plain lies away from the coast and the elevation can vary. Coastal plains are normally damper than interior plains. Interior plains have more chances for drought conditions as well. One result of the differences is population. More likely than not, coastal plains are population centers.
the great plains
the coastal area is between these two mountain ranges
The area between the Mississippi River and the Rockies is known as the Great Plains.