 GR Silver Mining Ltd CVE:GRSL OTCQB:GRSLF FRA:GPE announced it now owns 100 of the promising San Marcial project after finalizing a deal with SSR Mining Ltd TSE:SSRM NASDAQ:SSRM FRA:ZSV. San Marcial is a near-surface, high-grade silver-lead-zinc open pit-amenable project in Mexico with a 36-million-ounce silver equivalent indicated resource and another 11 million ounces in the inferred category. 