Atlantic Plain
The Atlantic Coastal Plain is a region of low elevation along the East Coast of the United States. It is 2,200 miles long, from Long Island, to the Georgia/Florida part of the Eastern Continental Divide. The plain is bordered on the west by the Piedmont plateau, which is a flat area bordered by the main Appalachian mountains, and where the plateau and the plain meet is called the Atlantic Seaboard Fall Line. It is bordered to the east by the Atlantic Ocean, and to the south by the Floridian province. The Outer Lands region forms the insular northeastern extension of the Atlantic coastal plain.