The Chattahoochee bubbles to life in the Appalachian mountains in northeast Georgia, near the point where the state abuts the two Carolinas. Cut 200 feet down off the Appalachian Trail at Coon Den Ridge to find the spring where the river starts. You can read more about the Chattahoochee headwaters on the About Georgia website at: http://ngeorgia.com/naturally/chattahoochee02.html.