The Edisto River is the longest completely undammed / unleveed blackwater river in North America, flowing 206 meandering miles from its sources in Saluda and Edgefield counties, to its Atlantic Ocean mouth at Edisto Beach, SC. It rises in two main tributaries (North Fork & South Fork) from springs under the Sandhills region of West Central South Carolina, just to the south of the Piedmont fall line. It is the longest and largest river system completely contained by the borders of South Carolina. Its name comes from the Edisto subtribe of the Cusabo Indians.
Near the coast, part of the river was once known as the Ponpon River. The Dawhoo River (sometimes Dawho, or Dawhoe) connects the Edisto to the North Edisto River, where the Wadmalaw River and the Toogoodoo River confluence and meet the Atlantic Ocean. Between the coast and the Dawhoo River, the river is known as the South Edisto River.[1]
The Edisto system flows through only one major town or city, Orangeburg, the location of Edisto Gardens (on the North Fork). The river system, being blackwater throughout its entire length, flows through highly intermittent bottom swampland. Thus, during an excessively rainy season, the river will leave its main channel, with its flow basin increasing to over a mile or more of total width. The lower Edisto basin forms a crucial part of the 11,815 acre (48 km²) ACE Basin National Wildlife Refuge. This coastal learning center has an area that encompasses its bottomlands confluence with the Ashepoo and Combahee river basins.
A major tributary is Four Holes Swamp, which is unique in that it has no single defined channel, but rather a network of braided channels.
See also
- List of National Wildlife Refuges
- Waterways forming and crossings of the Atlantic Intracoastal Waterway
References
- ^ Report of the Chief of Engineers U.S. Army, 1881, Volume II, page 1140.
External links
Coordinates: 32°39′16″N 80°23′17″W / 32.65444°N 80.38806°W
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