Georgia is bordered to the south by Florida, to the east by the Atlantic Ocean and South Carolina, to the west by Alabama, and to the north by Tennessee and North Carolina. The state's northernmost part is in the Blue Ridge Mountains, part of the Appalachian Mountains system. The Piedmont extends through the central part of the state from the foothills of the Blue Ridge to the Fall Line, where the rivers cascade down in elevation to the coastal plain of the state's southern part. Georgia's highest point is Brasstown Bald at 4,784 feet (1,458 m) above sea level; the lowest is the Atlantic Ocean. Of the states entirely east of the Mississippi River, Georgia is the largest in land area.