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South Carolina is a state in the Southern region of the United States. The Province of South Carolina was one of the 13 colonies that revolted against British rule in the American Revolution. It was the first state to secede from the Union to found the Confederate States of America. The state is named after King Charles II of England, as Carolus is Latin for Charles. As of 2004, the state's population is 4,198,068. South Carolina is bounded to the north by North Carolina, to the south and west by Georgia, located across the Savannah River, and to the east by the Atlantic Ocean. The capital and largest city is Columbia. Other important cities are Charleston, Greenville, Rock Hill, Spartanburg, Anderson, Sumter, and Florence. South Carolina is composed of four geographic areas, whose boundaries roughly parallel the northeast/southwest Atlantic coastline. The lower part of the state is the Coastal Plain, which is nearly flat, composed entirely of recent sediments such as sand, silt, and clay. Areas with better drainage make excellent farmland, though some land is swampy. The coastline contains many salt marshes and estuaries, as well as natural ports such as Georgetown and Charleston. An unusual feature of the coastal plain is a large number of Carolina bays, the origins of which are uncertain, though one prominent theory suggests that they were created by a meteor shower. The bays tend to be oval, lining up in a northwest to southeast orientation. Just west of the coastal plain is the Sand Hills region, which is thought to contain remnants of old coastal dunes from a time when the land was sunken, or the oceans were higher. The Piedmont area contains the roots of an ancient, eroded mountain chain. It tends to be hilly, with thin, stony clay soils, and contains few areas suitable for farming. Much of the Piedmont was once farmed, with little success, and is now reforested. At the edge of the Piedmont is the fall line, where rivers drop to the coastal plain. The fall line was an important early source of water power, and mills built to harness this resource encouraged the growth of several cities, including the capital, Columbia. The larger rivers are navigable up to the fall line, providing a trade route for mill towns. The upper part of the Piedmont is also known as the Foothills. The Cherokee Parkway contains a scenic driving route through this area. Highest in elevation is the Upcountry, containing an escarpment of the Blue Ridge Mountains, which continue into North Carolina and Georgia, as part of the southern Appalachian chain. Sassafras Mountain, South Carolina's highest point (elevation 3560 ft.) is located in this area. Also located in the Upcountry is Table Rock State Park and Caesar's Head State Park. The Chattooga River, located on the border between South Carolina and Georgia, is a favorite whitewater rafting destination.
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