po'farm
very possible that this stash place was used many times. As it is difficult to find that perfect place, this one is Spanish in origin, don't know what may have happened since, but the marks
I laid out for you are congruent, I ignored the signs that were not of the same puzzle. As always, we only need, Distance and Direction from either an Alpha or Omega monument..
Other marks are there to confuse the graffiti readers and throw them off track.
I would urge you to follow the decoded instructions as soon as you can, then you will
know that the decoding was right at least, and just perhaps they did not come back for the goods for one reason or another.
good luck, be safe and may God Bless your efforts.
rangler