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index to colorado mining directory - Denver Public Library History
history.denverlibrary.org
501. Oro La Plata, see La Plata Mining and Smelting Co. Lake. Orphan Boy. Chaffee Orphan Boy. Ouray Orphan Boy, see Yankee Girl Mining Co. Ouray. Orphan Boy Mining Co. Summit Orphan Boy Silver Mining Co. Summit Orphan Boy Tunnel and Mining Co. Park Orphan Child. San Juan
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