Hoff is a lying conman only in it for money, and to pump his ego. There is no gold like that lying around in that area of Arizona. IMO.
If you own stock, call the scumbag, and tell him this board wants an image taken with a camera registered in his name, with a closeup of the land, and whatever tools he used. This camera also will need to be capable of recording GPS co-ordinates.
Have him post the full EXIF data.
Tell this to his number one well pumper cone, too.