When in route to this rail, one will notice that there is a bike/walk/run trail to the east of street, and when does not see the trail continue one should have a sight of a guardrail. There is a drop off for one to park vehicle and venture to the rail, but do have your stealth shades on for the ongoing traffic going through.
The find is rather easy, biggest clue is in the name, of course, just a matter of choosing which post it is hidden behind. There is an open area to be able to park auto off the busy road for wreckers. Happy Hunting!!
FYI There are 25 of these type caches spread across North Carolina, South Carolina, Virginia and Tennessee. We have experienced the finds of a couple of these caches in our home state, but now we bringing to our home region (Rio Grande Valley). So, enjoy!!