The Halfmoon River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed April 26, 2011 tidal river in the U.S. state of Georgia. It flows through saltmarshes connected to Wilmington Island in Chatham County, ending at Wassaw Sound, an arm of the Atlantic Ocean.
See also List of rivers of Georgia
References
USGS Hydrologic Unit Map - State of Georgia (1974)