mines mineral resources colorado Silver Cliff district. Mines from which mineral has been extracted & sold; yield, prior to Jan. Republican denver . Apr. 18, 1881 p.6 c.2 Pool formed; mines; list. Rep. Apr. 26, 1881 p.2 c.l Production, Silver Cliff mill; stamps. Rep. Apr. 30, 1881 p.2 c.l Activities, mines; mills; companies. Rep. May 2, 1881 p.2 c.2 Production, mines; list. Rep. May 3, 1881 p.2 c.l Experimental period in history; Racine Boy mine financial status. Rep. May 21, 1881 p.6 c . 2
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