The soil in the sandhills was never well suited for agricultural purposes. The oldest and largest in South Carolina's state park system, Cheraw State Park is a good example of how man and the elements have contributed to changes in the landscape. Camden, the oldest inland city in South Carolina, is located on the Fall Line at the Wateree River. Camden and Aiken, another Sandhills town, are noted for training thoroughbred horses and steeplechase racing. The sandy soil keeps the tracks from being muddy and provides good footing for horses, keeping the injury rate down. Although the summer months are generally too hot for horse training, the rest of the year- from October to May- provides an ideal climate. The horse business is a leading factor in Camden's economy.