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PORTAL OF NEWHOUSE TUNNEL IDAHO SPRINGS COLORADO
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MINERS AT WORK IN THE STOOP COLORADO 1907
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MINERS AT WORK IN THE STOOP CRIPPLE CREEK DISTRICT 1907
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LOOKING FOR A MILLION DOLLAR LODE 1000 FEET UNDERGROUND 1910
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CRIPPLE CREEK COLORADO NO 13284 1906
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ECONOMIC MILL CRIPPLE CREEK DISTRICT
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LEADVILLE COLORADO 1901 NO.6755
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OFF FOR THE MINES 1903 NO.6769
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MACHINE MINING IN COLORADO 1911
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COLORADO ROTARY TUNNEL MACHINE 1909
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HARD ROCK MINERS TELLURIDE COLORADO
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ELKTON GOLD MINE CRIPPLE CREEK DISTRICT
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EL ORO MINE COLORADO
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ARGO TUNNEL AND MILL COLORADO