Mines and mineral resources. Colorado. Clear Creek county Standard Metals Corp. closes down Silverton mine. RMN Mr 19, 1971 p.100 climax Molybdenum Company spends millions hopefully to prove that mining and environment can mix. Post .:g 18, 1971 p .81, 84 New group Eva Mines, Inc. rejuvenates Black Eagle Mill at Idaho Springs and many mines on Republican and Democratic mountains. Post Mr 3, 1975 p.23 Decline of mining industry and brief bonanza of mid- thirties. Westerners Denver Posse, Roundup S/ W 1980 p.3-12
Click tabs to swap between content that is broken into logical sections.