Mining played a vital role in the development of the West. Immigrants often began their work lives in the United States as miners and this ethnic diversity is well represented in our mining collection. The department's mining resources include photographs, manuscripts, maps, serials, and directories. Twelve thousand digital images show mines, machinery, ore processing facilities, mine interiors, mills, smelters and miners of all types. More...
Coal mines underground Lafayette, Colorado .
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Updated: January 11, 2013