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Show I UTAH COrTH IS I k BIG PROPERTY I , George L. Walker, in his write-up I of Utah properties, says Utah Cop- H I i per is almost as big as all the other I porphyries combined. It will mine ' and treat 300,000,000 tons or ore, and I possibly 500,000,000, before its prop- I j erty is exhausted. Should the nian- 1 agement contlnuo to develop new 1 methods of economical handling and I treatment, as it is doing now, it will I bo sending one per cent ores to the JH mill twenty-five or thirty years hence I and still bo making copper at a cost B of 7 or 8 cents a pound. H Three or four years ago Utah- Cop- H por's concentrator was making an H average recovery of sixty-four to slx- B ty-slx per cent of the values in the B ore. The four sections of Its Arthur H mill, which have been remodeled, are - now recovering seventy-five to soven- H l U-slx per cent of the values from a H ' lower and therefore more difficult B grade of ore to concentrate. H No effort Is being made to mine a Hj high avorago grade of ore at present H Two of its steam shovels are loading H cars now from ono of the lowest Hp grade areas in the property. These H areas could easily bo avoided and ore H that will average nearly two per cent H supplied -to the concentrator, but B Utah Copper is being operated on H business principles, as a permanent H and not as a temporary ontcrprlae. B There is a belt of ore extending H through the center of Utah Copper's H big deposit for a distance of nearly H a mile, which will average almost H two per cent copper. It is about 850 H feet wide, and the deepest drill holes H and other openings in it, TOO to 800 H feet below the surface, were stopped Hi In one and a half per cent ore. There H is more than a possibility that this l area alone will contain, when final- Hji ly developed, as much ore as the H management estimated In last year's H report, 220.000.000 tons. Hj It will take Utah Copper between H fifty and 100 years to exhaust its ore H resources, oven after it attains to a H dally output of 20,000 tons. Mean- Hl while US operating costs will be H gradually reduced and its savings, or H recovery of values, Increased. Un- H doubtedly there is at least 0,000,000,- H 000 pounds of recoverable copper in H Us ore body. A profit of 5 cents a Hf pound on this amount will mean an B ultimnto return of $300,000,000 to H stockholders. Hl Taken as a whole, the Utah Cop- HL per company's oio area is about a Hfi mile long and half a mile wide. Pros- H peeling and development to date In- Hfl dlcatc that tho ore averages consld- Hti crably over 300 feet in thickness. As H a matter of fact, however, the full H depth of the ore has not been deter- Ht mined. Accidents stopped several HL drill holes when they were stU in H ono and a half to two per cent ore, j and no tonnage has ever been cat- H eulated below such openings by the' H management, except where under- ground openings have gone deeper Years ago some diamond drills wore stopped when they got down Into tho one and half per cent horizon, as In those days oven this was not considered con-sidered ore at all. With the company's com-pany's present facilities for handling and Its low concentrating costs, this is now good ore. |