Underground mines in the United States

http://dbpedia.org/resource/Category:Underground_mines_in_the_United_States an entity of type: Concept

rdf:langString Underground mines in the United States
rdf:langString Underground mines in the United States
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skos:Concept
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<http://en.wikipedia.org/wiki/Category:Underground_mines_in_the_United_States?oldid=881089450&ns=14>

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