Torie, have you tried to smoke that damn weed? I'm joking.
After an extended research, i found out how the Priest/Witch which is depicted on the stone tablet, it's only about 240 feet high, on a mountainside. It's shape, as the Spanish/Jesuit treasure maps rules require, is following rows of rocks on the ground, like all the other drawings/carvings on the tablet.
The Priest/Witch and the words on the tablet, as a final shape and meaning, are a result of the existing rows of rocks in the region which have helped and inspired the imagination of the map maker, nothing less and nothing more.
Actually, all the stone maps are Jesuit treasure maps to their hidden church belongings, which each one has been made for a specific spot or showing multiple spots of where the Church treasure has been buried, and there are three places where their treasure is buried.
The Priest map has depicted on it only one location of the three, the lower dot in circle, but actually was made to show and advice the way to approach another location, that at the end of the stone trail. The map shows how from a lugar to another, someoane has to follow a cross carved on a flat rock, rocks which few have confused as a grave's head monument. The priest cross, which holds in his arms, is pointing to another location of the treasure at a short distance, but also shows with the upper edge of the cross, where the trail of the 18 lugares ( cross markings ) to a different location is starting.
I post an overlay of the Priest/Witch on the ground for better understanding, and I marked two of the three location of the treasure with a yellow circle. The upper dot in circle depicted on the Priest tablet and also on the Horse tablet, is for another entrance from above to the one of the treasure's location. Enjoy!
PS
And for the Sombrero mine, IMHO is in another region to the north.