The ell would be a practical way to hid there measurements. On my map. That’s what I’ve always thought? I’ve studied it for years, I know it’s a treasure map. It wouldn’t make a triangle connected to the other 3 monuments if it was a grave marker, or claim marker. Claims are not triangular in shape as far as I’ve ever known. I understand the speculation coming from just a picture and not knowing the area so not trying to be a prick.