Actually the stone tablets are maps.
The Horse tablet is a 3D map and shows 3 mines ( dot in circle ), which two of them, in front of the Horse, have treasures cached inside. And like I have wrote, these two and another five mines are the spots which have cached treasure inside.
The Priest tablet has carved 2 advices and 2 statements about how to get at the end of the trail, advices which are accompanied by a sketch for better understanding. These advices should be read from the bottom to the top, and sound like this ( in the parenthesis I will write the sketch description ):
-LOOK FOR THE HEART ( which is beside and under the lower mine in front of the Horse. After go in that manner - half circle - to get the next level ).
-LOOK FOR THE MAP ( means trail stone maps which were deposited at the beginning of the Trail ).
-I GO 18 PLACES ( described on the tablet with the back side of the upper trail stone map ).
-
THIS PATH IS DANGEROUS ( this statement is for an alternative route which goes through a narrow pass < see Fauces from the Latin stone heart map > and ends almost at the top of the ridge and in front of the Priest's head landmark ).
The Trail map is a ground map ( 2D ) and is composed by two stone tablets. Someone has to follow the 18 places/markings to ensure the best result and to don't miss the end of the Trail which leads to the upper mine in front of the Horse.
The cross stone maps and the Latin stone heart map are ground maps and were made to ensure how someone is at the right place. The ORO written on the cross stone map with the relief drawings and the CAVERNA AURUM written on the Latin stone heart map, describe the upper mine in front of the Horse.
Many were close by the upper mine in front of the Horse, but nobody of them recognized the spot, and this maybe because they were not skilled in treasure hunting and of course they were not advised to look there for something.
I post below a GE image of the heart ( in the red rectangle ) which is mentioned in the Priest's advice. Is partially covered by overgrown vegetation but with little attention could be distinguished. With the yellow dot is marked the mine.
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