good morning: No, this area is way to the South / East of Tayopa, some 3000 meters. My friend in Alaska had remotely dowsed it out of curiosity, and did show where the tunnel complex was

?? How

? In any event I gave it no serious thought - then.
This tunnel system has nothing to do with the metal door, which is now hidden by talus, which he also located to within a few hundred feet of where my data placed it

?.
Incidentally, I did 'not' seriously use, or look at any of his dowsing efforts until after locating Tayopa, the door and the main deposit. Then it was a made to order set of tests on dowsing and remote dowsing. He came through with flying colors.
Now, How did he do it? How does it work
The "cerro del Cura" was named after an unknown Jesuit Priest had set up camp in the area in the 1800's, and was always, searching and looking, according the few Indian families that lived in the vicinity. One day he fell to his death while working on this hill (?) so it has always been called "The Hill of the Priest". He apparently was looking for the tunnel complex that my new associates (?) found, thanks to a bird.
Nothing has ever been removed from the area since the families living in the vicinity have handed down many stories of others that had entered the zone. If he had been successful, they would have remembered it.
Curious how stories of lost mines etc., be changed, continued, or lost on a odd word or action. In this case a couple of parrots that set up house keeping inside of a hidden tunnel complex help fill in the story of Tayopa.
In the first two photos you are looking towards the West from down in the bottom of the arroyo, the next one is looking to the East from the vicinity of Tayopa.
It is easy to see how a lone priest could fall from that stock. We know why he was there .
Don Jose de La Mancha