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2020 Map of Saint Helena Sound

Name: 2020 Topographic Map of Saint Helena Sound
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Saint Helena Island and its surrounding archipelago anchor this coastal survey, where the Atlantic Ocean meets a complex network of sounds, rivers, and marshlands. The landscape is defined by its maritime geography, from the broad Saint Helena Sound to the smaller channels of Coffin Creek and Ward Creek. Traces of the area's agricultural and social history are visible through the family-named geography of the islands, including the Big House Cem and Coffin Point Cem near the prominent Coffin Point.

The road network, including the Sea Island Pkwy, connects isolated settlements like Horse Island to the larger barrier islands. These islands, such as Hunting Island and Harbor Island, are separated by the tidal flows of the Harbor River and Johnson Creek. Significant nautical hazards and landmarks like Combahee Bank, Pelican Bank, and Egg Bank illustrate the shifting sands of the South Carolina Lowcountry coast.