From his email to me;
"One thing that I would like to rectify though, Veta Refugio is not a shear zone. Veta San Augustin is the shear zone. And Veta Refugio is not open to the east and west. This structure is horse tail vein to Veta Madre and it ends at Veta Villanos, 1.1 km to the east."
Hope this clears up my error...