Hey guys. Haven't posted here in a while.
Do a mapquest search for Amicalola falls. There are some nice winding roads up that way. You may or may not visit the falls themselves. They have speed bumps at the base of the falls and the hill to get to the top is rather steep. The real trick is simply getting away from the sprawl entirely. There are a lot of wonderful roads when you head north. Way north. Dawsonville area also comes to mind. Hey Jason, isn't there a runway up there somewhere?
Head up I-575 until it "becomes" 515 towards Jasper. Then head north from there or turn off to other destinations. Traffic on 575 will become much lighter as you go north of Canton. Fuel gets much more expensive north of Jasper, so be sure to fill up in Canton or Jasper.