What is the southernmost county in Georgia?
Charlton County, Georgia
 U.S. Route 1
 U.S. Route 23
 U.S. Route 301
 State Route 4
 State Route 15
 State Route 23
 State Route 40
 State Route 40 Connector
 State Route 94
 State Route 121
 State Route 177
 State Route 185
 State Route 252