Mexico/mexico370
Previous | Home | NextToward the bottom of the canyon. "MMM Purísima" [Minera Metalúrgica Miguel Purísima] was the over-arching mining complex company. The Purísima del Cardonal Mine, where plomo pardo was discovered, is elsewhere and will be visited later. However, many of the geologists accompanying us believed that plomo pardo was also seen here in the 19th century.
