
Map of distribution of mines and minerals occurrences in the Venezuelan Guayana Shield. Page, N. J.; Oris, G. J.; Gray,F.; Bolm, K. S. 1993 US Geological Survey, Bulletin 2062, 1993 You can download complete PDF version at / Puedes bajar la versión completa en PDF en: https://mariantoc.github.io/maps.html#GuayanaShield