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Show ; DEEPEST MINES 1 IN THE WORLD The world's deepest mines are in the Lake Superior copper region, while Ithe deope3t gold-mines In the world are In Australia, according to an article ar-ticle In the last Issue of the Mining The world's deepest mines are in the .Lake Superior copper belt No. '5 Bbaft, at the Tamarack mine of the "Calumet & Hecla mining company, i-as down to a depth last winter of 6273 6 feet below thc shaft collar. It was planned to extend this depth gome ton feet further, to cut out a Bump. This extension, which doubt-loss doubt-loss is completed, makes the Tamarack No. 5 shaft the world's only single shaft exceeding a mile in depth. No. 3 shaft of the Tamarack mine represents repre-sents probably the world's deepest actual ac-tual workings. No. 3 shaft Is down 5222 feet, or 68 feet short of a mile; but some crosscuts and slopes bring the bottom workings down to a total depth of 5368 feet below the collar of No. 3. Tamarack shaft. As the copper-bearing copper-bearing Calumet conglomerate dips about 38 degrees, the lowest Tamar-ack Tamar-ack No. 3 workings aro nearly 9000 feet distant from the outcrop of the conglomerate, There must also be JtuStI mentioned Fp connection with the jLS world's record shafts of the Lake Su-5m Su-5m $ -perlor copper country, the No. 4 Cal-9 Cal-9 i umet shaft of the, Calumet & Hecla H $ Mining company. This Is the world s SJ'' longest inclined shaft. It Is now '.down to the Slst level, or approximately approxi-mately S100 feet, along the slope of the conglomerate, at an incline of about 38 degrees, Deepest Gold Mines The deepest gold mine in the -world ;j-.was until latelv that of the New Chum jgi rflallway company at Bcndigo, Vic-1 Vic-1 .rforia, Australia. The New Chum s JTihaft is 4120 feet deep. It has lately te-j :been surpassed in dopth by the. shaft fj '.of the Victoria Con. company, also at 1 i 'j Bendigo, sunk to a depth of 4600 feet j i More recently the record depth for A- J gold mines has passed from the m 'f hands of the Australians, and is now jl I held by tne BrltIsh st John del Rey utl I oId Mln,n company, operating In Uj I Brazil. At the Mbrro Velho mines of fl ? thls comVany In tne state of Minas t Geraes the ICth level is 4226 feet ijfcf deep; the present lowest level, the 1 17th, Is 4926 feet in vertical distance below the collar of the main shaft, Ii and 4602 feet below the adit The X iMojto Velho ore body dips roughly 45 degrees, so that the workings extend 1 1 downward along the reef at a distance I of nearly 7,000 feet. The deepest I J American gold mine is believed to bo ,-. the Kennedyshaft at Jackson, Cal., 1 ; the workings of which are approxi-1 approxi-1 matelv 3,500 feet below the surface. ' "Must Have Assured Ore. ' The reason why the world's deepest D4 jl.mines are not in the precious metals 14' Is probably not hard to find. To fos- ter such deep workings there must be iat hand, first, not merely a supreme W S-and abiding faith, but a scientifically m I-assured or proved confidence in thc K f-contlnnity and workableness of the R dipping or other deeply buried ore - j.bo'dy Then, too, there must exist equable drainage, cheap fuel supply, ijf etc., in order to render operation S proftable or even possible. Last, but 9l f not least, there must be at hand an enormous aggregate of capital and m :f geological mining skill The fortunate j jjj combination of all these factors is a A rare or unknown In the precious metal rmlneB, and Is of commoner occurrence 5JI I in some of the great American copper. ;f iron and some European coal mining V companies. i |