MAKE A MEME View Large Image Ruth Cross Section.PNG en Ruth Cross Section 1990-01-01 USGS Bulletin 1857-E Gold in Porphyry Copper Systems Gold in the Ely Robinson Copper District White Pine County Nevada Laurence P James other versions PD-USGov Ruth Nevada Ely Nevada ...
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Keywords: Ruth Cross Section.PNG en Ruth Cross Section 1990-01-01 USGS Bulletin 1857-E Gold in Porphyry Copper Systems Gold in the Ely Robinson Copper District White Pine County Nevada Laurence P James other versions PD-USGov Ruth Nevada Ely Nevada Nevada Copper mines Copper mining Copper mining in the United States
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