On a number of occasions I've ridden portions of the Silver Comet Trail, starting near Atlanta and heading west to Alabama but until last Thursday I had never been been on the western portions. The Silver Comet starts near Smyrna, Ga (home of Glock USA) and runs 60+ miles to the Alabama border and then, as the Chief Ladiga Trail, runs another 35 miles into Alabama.
Last Thursday, my brother and I started on the Silver Comet near Cedartown, GA and went west to Piedmont, Al. The ride went through some of the lower Appalachian Mountains but it followed a river valley. We went over bridge after bridge over deep gorges with beautiful streams at the bottom.
I'm sure there are more beautiful bike rides somewhere but I haven't found them.
BTW: In over 30 miles, we saw 2 bikers and 4 people walking.