Mohave County miner., 1907-06-29
Copper Deposits at Ely, Nevada.


 general attention throughout the min ing field. This is due not only to the rapid increase of the proved mineral area, but to the very extensive prepa- rations now going forward for concen- trating and smelting the ore. The Cumberland-Ely and Nevada Consoi- dated mines, two of the best developed properties in the camp, have fully 3O,O0O,O 900 tons of ore blocked out at their several workings. One of the largest reduction plants in the United States is in process of erection. A railroad IA miles in extent now con- meets Ely with the outside world. Other railroad systems are extending their lines with Ely as an objective point. A large force of graders and trackayers is at work between Win nemucca on the Southern Pacific, and Bows, the junction point of the Ne vada Northern. By July next it is ex- pecled that through Pullman service will be established over this branch of the Western Pacific between Salt Lake and Ely.
 Rapid development at the mines. the construction of the reduc ioa works, and the building of modern city, mean an expenditure in the Ely district of over 2O,OOO,OOO$. Any such investment before single ton of re- fined copper is made or marketed is ab- solutely unique in the history of min- ing. It is warranted only by the known presence of very large bodies of low-grade concentrating ore. Fig uring on an output of 10000 tons of crude ore day, the tonnage now blocked out at these large properties cannot be exhausted for many years.
 The successful treatment of low grade concentrating proposition can only be undertaken on large scale
 This of course pcesupposes the ex- istence of large deposits. If there were any question as to the extent anC comparative uniformity of the copper sulpnide deposits in the Cumberland Ely and Nevada Consolidated proper ties, the expenditure of 10000, ,OOOS pre- paratory to the treatment and market ing of these ores would be unwarrant ed. Given the large tonnage, how ever, both actual and prospective, the  undertaking, large as it may seem resolves itself into purely commercial proposition. Every step from minin! the ore to the production of refined copper has been most carefully studied Modern equipment is been installed throughout. Every proved labor:sav ing device that will clip fraction of the cost will be employed, and it il doubtful if any camp in the countr. will rival Ely in economy of produc tion when the concentration and smelt ing plant is in full operation.
 Electricity for operating the mine will be furnished from the centra power plant at the reduction works For the most part, the mines of botl companies will be worked by the cav ing system. At the Eureka mine however, steam shovels will be in stalled as soon as the railroad is com pleted to Copper Flat. Spur track will run directly to the principa working mines of both the Cumber land-Ely and Nevada Consolidated connecting them with the reductio works. In the opinion of engineer who have made careful and exhaust i've study of the situation, the Cumber land Ely and Nevada Consolidated G can produce copper at ' cents pc pound, sold in New York. With coI per at r cents, this indicates d yearl profit of over 6,OOO, ,OOO$. At the pre-. ent price of 9 cents for copper, tn indicated profit per annum is over II OOO,O,O O$, figuring on production ( thirty-tive pounds of refined copper pc ton, with daily output from the rt duction plant of 5000 tons.-From al ticle by William Starr Bullock, Mines and Minerals.
 During the past two weeks CliftC