Silver mining in Colorado

http://dbpedia.org/resource/Silver_mining_in_Colorado

Silver mining in Colorado has taken place since the 1860s. In the past, Colorado called itself the Silver State. (Nevada also calls itself the Silver State. Idaho, however, actually produces the most silver in the US.) rdf:langString
rdf:langString Silver mining in Colorado
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rdf:langString Silver-mining centers in Colorado
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rdf:langString Silver mining in Colorado has taken place since the 1860s. In the past, Colorado called itself the Silver State. (Nevada also calls itself the Silver State. Idaho, however, actually produces the most silver in the US.)
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