This is a mystery cache, as such, you will need to solve the puzzle below in order to figure out the coordinates to where the cache is hidden.

You can go to the posted coordinates as much as you like, but you will not find the cache there.

I repeat, the cache is NOT at the posted coordinates. 

The difficulty is based on the puzzle and the terrain is based on the hide. 

The Puzzle:

N38° 48.XXX W076° 42.XXX

You can validate your puzzle solution with certitude.