Southern Rivers is an area in southwest Georgia, United States, spreading north. Geography The Southern Rivers Region constitutes the southwest corner of the state of Georgia and is made up of the following counties: Baker Berrien Brooks Chattahoochee Clay Colquitt Cook Coweta Crisp Decatur Dooly Dougherty Early Echols Fayette Grady Harris Heard Irwin Lanier Lee Lowndes Macon Meriwether Miller Muscogee Pike Quitman Randolph Schley Seminole Spalding Stewart Sumter Talbot Taylor Terrell Thomas Tift Troup Turner Upson Worth Regions of Georgia (U.S. state)