Center Hill Lake & Cedars of Lebanon: Cookeville to Long Hunter State Park is a 128 mile trail located near Smithville, TN. The trail is primarily used for scenic driving and is accessible year-round.
Did this a couple years ago.
Melody must be super girl if she hiked this route. It is a beautiful drive that I did in the summer of 2014. It is scenic most of the way with rolling hills and water views.
Great running trail that you can go as little or as far as you want. Some steady inclines, but nothing too taxing.