I recently learned of the new trail system being built and maintained by the Nashville's Metro Parks Department. I must say that from what I have seen so far they are a fabulous addition to our city. I went for a run yesterday on the Stones River Greenway (map) starting at the Kohl's trailhead and continued to the Percy Priest Dam trailhead and then back (5.8 miles). It's mostly shaded with great views of the river along the way. At one point, a deer was jaunting through the woods to my left for about 50 yards or so. The trails are well maintained and very clean.
This trail does have it’s hills though! It makes for a very challenging run — at least for a beginner runner like myself. My legs are certainly sore today.