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Ore Deposits of the Breckenridge Mining District of Colorado
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The La Plata Mining District of Colorado
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Economic Geology of the Silverton Quadrangle of Colorado
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The Ajo Mining District of Pima County Arizona
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Gold in the Gold Basin and Lost Basin Mining Districts of Mohave County,...
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Mining in the Dragoon Quadrangle of Cochise County, Arizona
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The Cerro Gordo Mining District of Inyo County California
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The Conconully Mining District of Okanogan County Washington
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The Wallapai Mining District of Mohave County, Arizona

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