Clarks Hill Lake (J. Strom Thurmond Lake) is the largest U.S. Army Corps of Engineers project east of the Mississippi River and one of the largest inland bodies of water in the South.
The largest lake in Georgia is Lake Paravani, which is located in the south-central area of the country and covers an area of about 37 square kilometers (14 square miles).
http://www.greatlakesofgeorgia.com/clarks/