South Newport River

South Newport River
Location of mouth
Location
CountryUnited States
StateGeorgia
Physical characteristics
Source 
  locationGeorgia
Mouth 
  coordinates
31°33′17″N 81°11′40″W / 31.55467°N 81.19454°W / 31.55467; -81.19454
  elevation
0 ft (0 m)
Length42.6 mi (68.6 km)

The South Newport River is a 42.6-mile-long (68.6 km) river on the Atlantic coastal plain in the U.S. state of Georgia. It rises in Long County 3 miles (5 km) south of Walthourville and flows east-southeast, becoming the boundary between Liberty and McIntosh counties. It flows into Sapelo Sound, an arm of the Atlantic Ocean, south of St. Catherines Island.

The river's name most likely is a transfer from Newport, Rhode Island.