Altamaha River

The Altamaha River /ˈɑːltəməhɑː/ is a major river in the U.S. state of Georgia. It flows generally eastward for 137 miles (220 km) from its origin at the confluence of the Oconee River and Ocmulgee River towards the Atlantic Ocean, where it empties into the ocean near Brunswick, Georgia. No dams are directly on the Altamaha, though some are on the Oconee and the Ocmulgee. Including its tributaries, the Altamaha River's drainage basin is about 14,000 square miles (36,000 km2) in size, qualifying it among the larger river basins of the US Atlantic coast.

Altamaha River
The Altamaha River viewed from the bridge between Glynn County and McIntosh County, Georgia, USA
Map of the Altamaha River watershed showing the two main tributaries, the Ocmulgee River and the Oconee River
Location
CountryUnited States
StateGeorgia
Physical characteristics
Sourcenear Hazlehurst
  locationGeorgia
  coordinates31°57′33″N 82°32′37″W
  elevation82 ft (25 m)
MouthAtlantic Ocean
  location
Altamaha Sound
  coordinates
31°18′57″N 81°17′5″W
  elevation
0 ft (0 m)
Length137 mi (220 km)
Basin size14,000 sq mi (36,000 km2)
Discharge 
  locationDoctortown, GA
  average13,520 cu ft/s (383 m3/s)
  minimum1,410 cu ft/s (40 m3/s)
  maximum178,000 cu ft/s (5,000 m3/s)
Basin features
Tributaries 
  left
  • Ohoopee River
  • Beards Creek
    • Mushmelon Creek
  right
  • Penholoway Creek
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