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Show OLD COEUR D'ALENE DUMPS YIELD.. ! DIG VALUES Modern Treatment Methods Add New Industry to Idaho Ida-ho Mining District. WA1XACE. Ida., Oct. 14 The raw ery of tha mineral veluse fram old tall- ' Inge dumpe and from tha accumulation of tailings along tha rtvar and In da mi built to proteot tha river .channel has grown to ba a branch of tha mining Industry In-dustry of eonsldereble Importance and Increasing poflt. , Theae dump and dm talllnga art for tha moat part tha accumulation of many years, covering a period whan mining processes were crude comparad with tha highly developed metallurgical aklll that rulea In tha mllla of tha Couar d'Alswe d lit riot today. In tha early day a It waa not uncommon for bO per cant of tha, valuea to go down tha creek In tha tair-ti-gs. Mont of thla waa loat forever, but alter a few yea re tha accumulation of talllnga In the river channel re nulled in overflowing aujucent land and her a ma a in enure to proper! v that had Iq lie overcome over-come by the ofteratlng mining companlee. Una of tha eucceaaful plana adopted waa the building of rtnma which aerved as great settling pond a for tha tailing. About the same time tha companies KeiterHlly began baajktng their coaree talllnga tall-lnga Inatead of permitting tham to paaa direct Into the vreek. Hoin of tnetn- contain eufflrient tnltiea to Justify r-working r-working and tht la now being dona etUier by the owning companies or by tenners, the values eing usually recov ered through fine cruahing, table concentration con-centration and flotation " |