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The Center of the Great Clear Creek and Gilpin Gold Belt
其他書名
(railway, Tunnel, Mining, Milling, Water and Electric Power) : Clear Creek and Gilpin Counties, Colorado, U.S.A.
出版C.H. Woeltje & Company, 1906
URLhttp://books.google.com.hk/books?id=EpHqtgAACAAJ&hl=&source=gbs_api