Found this roundabout while searching on Google Earth; didn't know this was around here, did ya? 
Puzzle:
Upon entering from US 460, go to the roundabout and go around 270°. Then follow the road (73⁄500) x pi miles from the circle (It is recommended that you do your math before you come here and that you round to the nearest hundredth). Look for a cluster of evergreens right next to the southern sidewalk.
You won't need this, but here you go:
Happy caching, good luck.
Congrats to ithink314 for FTF!