Located a long the Atlantic ocean and the gulf of mexico which includes broad lowlands that cause excellent harbors.

West of the coastal plain extending from eastern Canada to western Alabama which includes the Piedmont.

this region is located west of the Appalachian mountains and east of the rocky mountains with flat lands that gradually increase in elevation westward.

Located west of the rocky mountains and east of the coastal range that has varying elevations containing isolated mountain ranges and death valley, the lowest point in North America

Located west of the great plains and east of the basin and range and the rugged mountains stretching from Alaska to (almost) Mexico with high elevations that includes