Ruby–Poorman mining district

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1	Alaska Resource Data File Charley River quadrangle Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey[removed]for a description of the information content of each Add to Reading List Source URL: ardf.wr.usgs.gov Language: English - Date: 2012-07-25 12:39:55 Gold mining in Alaska Gold mining Coal Creek Historic Mining District Placer deposit Placer mining Yukon River Boulder Creek Ruby–Poorman mining district Mining Economic geology Alaska