Saint Helena Sound
coastal inlet in South Carolina

Saint Helena Sound is a coastal inlet in the Lowcountry region of South Carolina, located along the Atlantic Ocean between Beaufort and Colleton counties. Located within the relatively undeveloped ACE Basin, the sound consists of the mouths of the Ashepoo, Combahee, and the south branch of the Edisto rivers, of which the ACE moniker derives from. The inlet is located 15-mile (24 km)east of Beaufort, between Edisto Island and Hunting Island. At its widest point, Saint Helena Sound is 7.5-mile (12.1 km) across. The Intracoastal Waterway crosses the sound. Much of the land surrounding St. Helena Sound has been preserved through the St. Helena Sound Heritage Preserve and the larger ACE Basin project.
See also
ACE Basin
St.
Begin with the source’s own compact description: “Saint Helena Sound” is coastal inlet in South Carolina. The dossier treats that line as a proposition to test through Saint, Helena and Sound, not as a finished interpretation.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jan 25, 2026. The linked authority identifier is Q7401348. VIAF identifies the subject as 315527410. The Library of Congress control number is sh90005590. Authority coordinates are 32.455, -80.440. 3 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Saint Helena Sound” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.