This is a list of streams and rivers in the U.S. state of Florida. With one exception, the streams and rivers of Florida all originate on the Coastal plain. That exception is the Apalachicola River, which is formed by the merger of the Chattahoochee River, which originates in the Appalachian Mountains, and the Flint River, which originates in the Piedmont. Most streams and rivers in Florida start from swamps, while some originate from springs or lakes. Many of the streams and rivers are underground for part of their courses. The Everglades, sometimes called the "river of grass", is a very wide and shallow river that originates from Lake Okeechobee. Most of Florida's streams and rivers drain into the Gulf of Mexico. Drainage on the east coast of Florida is dominated by the St. Johns River, which, with the swamps that form its headwaters, extends parallel to the coast from inland of Fort Pierce to Jacksonville.[1]