Help Identifying... Treasure X symbol or just a corrosion on a rock ???

[sparaxis]

Found this rock with a X on it a couple of weeks ago, my first thought was "it is a treasure symbol and the x pointing the treasure" so i checked around with a metal detector (Garret at Pro) but my finds was only a couple of nails. now im not sure it is a corrosion or a real treasure symbol with different meaning.

Now need a professional Opinion, What do you thing ?
thanks in advance

 

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[10claw]

View attachment 1177639
Found this rock with a X on it a couple of weeks ago, my first thought was "it is a treasure symbol and the x pointing the treasure" so i checked around with a metal detector (Garret at Pro) but my finds was only a couple of nails. now im not sure it is a corrosion or a real treasure symbol with different meaning.

Now need a professional Opinion, What do you thing ?
thanks in advance

Look closer at the X and see if you think it is man made or otherwise. After that go up hill to check other rocks in line with the long point of the X .- Also look closer at this rock for other marks such as numbers or letters. If you find metal pieces with the detector it may be clues so don't move them -- get photos and info for direction and distance.
I am not a pro, just wanna help out a little.

 

[dsty]

Good call 10claw, take something with a straight edge and use it at the top edge of the + to get the exact degrees, should be North South and the left to right should be East to west, the height should shoulder high.

 

[westy]

I'm only a newbie here, but I don't see an 'X". I see a cross.
Now, is that any different, or the same thing and I'm 'splitting hairs',?

Help me learn, here!