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Show WALKER COPPER 1 IT is to the credit of the Salt Lake Stock and I Mining Exchange that it is the principal mark not 1 only for shares of the principal mines of Utah, but 1 is attracting the best and most substantial offer- I ings from neighboring states. Its sphere of influ- 1 ence extends as far as California since it became 1 the listing point of the Walker Copper company 1 of Plumas county, California. 1 The hour of ibringing the contract of this pat- 1 ented bonanza to Utah belongs to the Walker 1 family and for the retention of that control we should thank John F. Cowan and his Utah associates, asso-ciates, who put the property on an operating basis. It has not yet demonstrated its full possibil-'ities, possibil-'ities, but enough has been done in the two years since Mr. Cowan and his group took it over to prove that it is going to be one of the great copper producers and money-makers of the 1 West. I There was much, to be done before the Walker 1 could be introduced to the public as a finished 1 mines. Besides the usual mining machinery, it I needed a mill for the reduction of the ores and . I a tramway for their transportation. The mill I uses oil flotation and has a capacity of 100 tons I per day, and the tramway is 5,000 feet long. A copper-bearing vein fifty feet in thickness I is the central asset of the company. While not of the highest grade, the ore carries on the average considerably more metal than the most successful of the so-called "porphyries." Eighteen Eigh-teen feet of the vein assays 8 per cent and the remaining 32 feet, 2 per cent In the red metal. Another vein, not so wide but richer in content con-tent has been exposed for a considerable distance in the upper workings o fthe properly. Tests give it about 13 per cent copper. It is 18 feet wide. There are thirty-four claims in the company's estate and ten of these are patented. Development Develop-ment at the beginning of the year included a shaft 125 feet deep, a tunnel 250 feet long and a 300-foot tunnel as well as several drifts and cross-cnuts cross-cnuts driven for the purpose of proving the ore bodies. It is at the deepest point in the workings work-ings that the best values appear, suggesting the presence of very large tonnages of high grade copper ore at greater depth. I The ore is highly amenable to the flotation process. At a mill run made in San Francisco, a saving of 93 per cent of the copper was effected. ef-fected. A test in Salt Lake gave even a higher percentage. The cost of mining is estimated at $3 per ton; that of tramming at 25 cents, and that of milling 50 cents, or $3.75 a ton. At the mill Z tons put into one makes a concentrate containing 20 per cent copper worth, with copper at 17 cents a pound, worth. $68, while the accompanying gold and silver amount to $10 a ton. Placing the entire cost of production produc-tion at $28.12 a ton, there will be a net profit of more than $42 per ton on the ore. While copper is at present prices the returns re-turns of course, will be much higher. |