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2020 Map of Saint Catherines Sound

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

USGS Topo · Published 2020

About this map

Saint Catherines Island and Ossabaw Island anchor this coastal Georgia survey, where the intricate tidal marshes of the Sea Islands meet the Atlantic Ocean. The map documents a complex network of estuarine waterways, including the Medway River and North Newport River, which converge at Saint Catherines Sound. To the west, the settlements of Colonels Island and Yellow Bluff provide a human perspective on this maritime landscape, connected by a network of local roads like Youmans Rd and Deloach Rd.

The landscape is defined by its transition from mainland bluff to salt marsh, featuring numerous named hammocks and islands such as Walburg Island and Black Hammock. The Intracoastal Waterway cuts through these tidal creeks, serving as a critical navigation artery. Geographically significant features like Medway Spit and Middle Ground illustrate the dynamic nature of the sound's shoals and coastal morphology during this period.