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Show about two miles loug. Soimv fiOO me-1 tors of tunnels and crosscuts have been opened, and it Is estimated that ore worth from $G.O00.000 to ,000,. 000 has thus far been exposed. Mining Min-ing experts said that the ore contained con-tained from 11 to 12 per cent of copper. cop-per. Thus far the ore haa tecn mined In the most primitive way. .negroes hauling out the ore wJth windlass and rope. About SO miles to the northwest lies the Kambotc mine, said to be tbo richest copper mine In the world. It la described an consisting of two hills of copper ore, one of which if 1,800 meters long and 600 meters wide, the other considerably lODger. Tunnels have been driven into one of them about J. 100 feet and the engineers pave the average richness of. the ore taken out ax 11 to 1C per cent. It Is estimated that it contains a.non.noo tons of . 12 per cent ore down to the 100 foot level. Ten other mlues In the district at which some work lists been done show that a large amount of ore had been exposed. In Darkest Africa. In two respects the Katanga dc-P'l'dts dc-P'l'dts make a favorable comparison with tho ot" the United States. They are much rlchor and the operating expenses will be cheaper, notwithstanding notwith-standing the fact that the district lies lu the heart of darkest Africa. The average copper for the district is now assumed at between 12 and 15 per cent. This compares .with an .average .av-erage of 3 to C per cent for American mines and with 2 1-2 per cent for the famous Rio Tlnto uilne In southern Spain. The Katanga deposits, more- j over. He on the surface, while the b8t American mines are now down several thousand feet, and it will be Iosslble to work many of them from open cuts. Robert Williams, general manager of thf Tanganyika concessions, conces-sions, which, together with a Belgian company, enjoy a monopoly of exploring explor-ing and mining in Katanga, said at a stockholders' meeting two years ago that the costs of mining at the Star mine would not exceed 15 pounds per ton of copper produced, and his engineers engi-neers expect a still lower cost when the Kambove and other mines should come Into operation. He gave tho average av-erage cost of mining in the United States at 50 pounds a ton. The Tan-ganika Tan-ganika company has secured ample coal deposits in Rhodesia, and there are abundant streams in the copper district for the generation of electricity. elec-tricity. Building Railroads. The transportation problem has not yel been fully solved In Katanga. The ralltvay will be carried forward from Ellzabethvllle to the Kambove mine within tho next year or two. The Tanganyika company Is building a road of its own from Benguela In Portuguese West Africa About 200 miles of this road will be completed 'by the end of the year, but It will take some five years" to flnlnh the remaining re-maining 820 miles to the western end of the copper district. The Belgians are also building a road Into the district, dis-trict, which, supplemented with a steamer service, will open communication communi-cation with tho mouth of the Congo. I RICH COPPER M THE CONGO REM Recent cables to the effect that tho Cape to Cairo railway has Just reached Elizabeth ville are of the greatest importance to the copper markets of the world, as this city Is the first station In the Katanga copper cop-per regions, about which European in-terests in-terests have 'been making the most remarkable reorts for several years. The most Important mine In the Katanga Ka-tanga region Is known as the Star of the Congo, and is located at Eliza-bethvlllo. Eliza-bethvlllo. In the immediate vicinity there are live or six other copper mines which, It Is dieved. will soon develop Into producers. The Star mine is now being equipped with machinery ma-chinery recently shipped from Antwerp, Ant-werp, and within half a year the first Katanga copper is expected to reach European markets. In Mew of the great importance of this event to the copper interests of Amcilea, a description of the Katanga deposits and their prospects will be of interest. The district lies in the remote re-mote part of the Congo Free State. It extends nearly east and west across the streams forming the headwaters or the Congo The mineral district Is about 20 miles long by 25 miles wide and in It nearly 150 copper deposits have been located. Recent explorations explora-tions in the mountains lvlng north of the eastern part of tho 'belt have resulted re-sulted in further discoveries of copper ore, although it Is impossible from the meager data thus far received to form any conclusion as to their Importance. Import-ance. Depth Is Lacking. H Is not yet possible to form any accurate estimate of the copper contained con-tained in the Katanga region, owing to lack of transportation facilities. The work of developing the deposits has been of the most superficial character, char-acter, most of the deposits having merely been scratched on the surface to verify their existence. Only about fifteen mines have been opened as deep as UK) feet below the surface. I The Star mine at Kllzabetbvlllc Is described as "being in a hill of ore |