Charleston Harbor

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Map of the Charleston Harbor watershed.

The Charleston Harbor is an inlet (8 sq mi/20.7 km²) of the Atlantic Ocean at Charleston, South Carolina. The inlet is formed by the junction of Ashley and Cooper rivers at 32°49′7.10″N 79°55′40.41″W / 32.8186389°N 79.9278917°W / 32.8186389; -79.9278917. Morris and Sullivan's Island, shelter the entrance. Charleston Harbor is part of the Intracoastal Waterway.[1]

Like most river mouths in the Southeast, the inlet is evidence of a drowned coastline, created by a rise in sea level in recent geologic time.


Charleston Harbor was also the site of the first successful submarine attack in history on February 17, 1864, when the H.L. Hunley made a daring night attack on the USS Housatonic.[2]

See also[edit]


  1. ^ Charleston Harbor. Columbia University Press at Accessed 2 November 2006.
  2. ^ U.S. Navy history website