Salmita Mine and Tundra Mine, produced what?
Tundra Mine The Tundra Mines was a gold producer in the Northwest Territories, Canada between 1964 and 1968, producing 104,476 troy ounces (3250 kg) of gold from 187,714 tons of ore. A detailed history is provided in the link below. Indian and Northern Affairs Canada has a project to remediate the Tundra Mine site under their Northern Contaminants Program, funded by the Canadian Federal Contaminated Sites Action Plan.
Sierra Gorda Copper Mine Project Sierra Gorda Project mining in Chile is a Copper-Molybdenum open pit mine which started production on October 1, 2014. Sierra Gorda SCM is the project company operating the mine. KGHM International Ltd (55%), Sumitomo Metal Mining Co. (31.5%) and Sumitomo Corporation (13.5%) are the owners of Sierra Gorda SCM.