Show The Last Mile k I 4 p 2 4 4 A I r 1 t I tt t t Much has been written and much I has been said about the discovery f r of ot ore the extraction of ot tho the metal 1 r I and its preparation for tor industry But what of the vast amount of ot a I fit waste material in tho the ore that Is Isk t f k 1 mined in the various districts fIt I it throughout Utah 0 s sI The accompanying two photographs photographs photo- photo I graphs taken at the American I Smelting S Refining plant at Garfield Gari Gar- Gar i 5 field shows the ore on its last mile t After Arter the ore Is mined It Is first firstI I t sent to a where much t of oC the waste material Is la removed Normally about 80 SO per pcr cent of oC the it waste Is removed In the process of oC 1 concentration I II iY Concentrates are then moved toa to toa toa I a smelter where through a process of ot fire and heat still more of oC the thet t Impurities are removed remo The picture pic pic- ture tore on the left leCt shows tho the moulten wast wast- material being poured from froma a furnace into a huge iron bowl v which is placed on wheels for ifor transportation transportation transportation trans- trans to the slag dump The picture on the right shows II the moulten mass being poured onto onto on on- 11 to the thc slag dump where It will remain as mute evidence of the Industry Industry industry In In- j J It has hns created in bearing the precious metals from Crom the 1 j 11 bowels of or tho the earth for Cor use by i 1 civilization 1 The concentrator and the smelter I Iare are only part of oC the process of or ore j 1 reduction After Arter the metals leave i these plants they are sent elsewhere elsewhere else else- i 1 where for refining and fabrication 1 It Il seems almost incredible that thata i j a ton of oC ore containing only a fraction fraction frac trac- i tion Uon of an ounce of oC gold can be I mined transported sometimes many j miles by truck and rail then put I through the smelter and still yield i ia j I a profit to Its producer f In order to do this millions of ot dollars have hae been Invested in milling milling mill mill- I ing and smelting plants In Utah and Salt Lake valley vaHey serving as asit asit it does the mines of ot many western J states has become known as the worlds world's leading mining and smelting smelt smelt- ing fag center Jl y |