In order to find this cache you will have to travel through both NC and VA. If coming from NC, you will have to travel to VA and back to NC and back to VA. If coming from VA, you will have to travel to NC and back to VA. This cache is not accessible from Hwys. 29 nor 58, you have to access it from Greentree Road. There is a nice parking spot very close by. D/T is because you have to pay attention.
Enjoy crossing the state borders!