| OCR Text |
Show THE ACHIEVEMENTS AT THE COLUMBUS COLUM-BUS CONSOLIDATED. With the Columbus Consolidated Mining company com-pany of Alta, progress and improvement have been the watchword in marked degree during the year 1905. During the year the company has paid off all indebtedness, and still has a nice balance bal-ance left in the treasury. The indebtedness was for about $30,000 in improvements, which included: in-cluded: A building for a fine modern boarding house, capable of handling 150 men, provided with hot and cold water, slush toilets, bath rooms, plunge bath in basement, iron bedsteads, mattresses, mat-tresses, electric lighting system, etc.; also a fine crude ore house with a capacity of 1,000 tons, and a concentrates bin at the mill, of 1,500 tons capacity. ca-pacity. The company also is installing a lead cable 2,000 feet in length, to carry 440 volts of electricity to the mine's extreme lowest workings, where it will run a direct connected motor turbine pump capable of handling 300 gallons of water per minute, min-ute, under a head of 200 feet. This pump will run under water. It is something new in mine pumping. pump-ing. Another improvement of- the year is the installing in-stalling of an Ingersoll ' clt-driven compressor with a capacity of 640 cubic feet- of air per minute. min-ute. This is in. addition to the large Nordberg compressor with which the mine was before provided. pro-vided. Contract has also been let for installing another unit at the power plant, which will double the capacity, and at the present time a 50 h. p. hoisting engine is being installed at the company's com-pany's No. 3 shaft. Improvements such as these indicate the broad-minded yet conservative character of the Columbus Consolidated management, as well as ' the permanency of this really great property, the development of which, under adverse circumstances circum-stances at the beginning, has meant so much, and means yet more in the future, to the Alta district. For these improvements in and additions to the facilities for handling ore, and the provisions for the comfort of the employees, by no means constitute all that has been going on in a progressive pro-gressive way at the Columbus Con. During the year the company has sunk a shaft 220 feet below be-low the present tunnel level, opening up an excellent ex-cellent ore body, mostly of a good shipping quality. qual-ity. It hs also sunk a shaft 100 feet below the tunnel levc e Howland tunnel, encountering there a nic dy of ore, but mostly of a milling quality. I; addition to all this, about 2,500 feet of prospect work has been done during the year. Tony Jacobson, the president and general manager of this .company, and A. O. Jacobson, the superintendent, demonstrating by their works their faith in the Atla district, and at the same time adding to the wealth and future prospects of the stockholders of the Columbus Con., with the showing they have now developed, there is every encouragement for going on with the good, work. With its 4,000 feet of tunnels, the How-land How-land and the Columbus, the workings of which are connected, ground has been opened which it will take many years to exploit. Ore bodies from which the tonnage of the mill is derived are en- (KHIBHnnHHnntMHHMBMBHBBBBIBiA !jl countered at various points in the tunnels, and W their full size remains to be demonstrated. ml Enough is actually in sight, however, to supply I the plant, running at full capacity, for at least ; another generation or so. L; The main veins being in contacts, thus asur- ing their permanency with depth, the Columbus p Con. management is absolutely safe in making ; the preparations they are making for handling an I' . immense production. From the first ore chute, I commencing at the No. 1 fissure and contact, 300 I feet from the mouth of the Columbus tunnel, 200 feet of cross-cutting exposed the No. 2 fissure, j HJere a shaft was put down in ore 100 feet below be-low the tunnel level. At its mouth is a 25 h. p engine for hoisting purposes. A cross-cut has been driven from the bottom of this shaft to the , No. 1 fissure and this connection makes it pos- jj sible to raise the ore from both deposits through I1 j the one shaft. T ! The Brain fissure, with its magnificent show- i, ingof minerals, is intersected 900 feet further on f j in the tunnel. The fissure has been followed on f, ; its strike toward the west for a distance of 500 jj feet, ore being encountered for the entire dis- i , tance. When this distance had been gained, the i ' drift was found to break into another contact, I this time between quartzite and lime, and there II the vein swells into a large body bearing copper, If silver, lead and small quantities of gold. The I; quartzite forms the hanging wall and the lime the I foot wall. Jj Still another large ore body is encountered in ! the mass of white lime along the strike of the 1 Brain fissure. Here the hanging wall is of the white lime and the foot wall of black siliceous lime. Beyond the black lime, connection is made ! ; with the Howland tunnel, which has been run on ! a contact of quartzite and black lime, j! In the Howland tunnel, still another body of j, ore has been opened, and it is here that some'of the development work of the last year has been carried on with such excellent results. In this body copper predominates, with enough lead, silver and gold associated to add greatly to its market value. This vein, which averages about twenty-five feet in width for the distance mentioned, men-tioned, rises to the surface for a considerable distance and goes to an indefinite depth, thus providing in itself an ore body of sufficient size to make a great mine. From these various mineralized contacts the Columbus Con. is taking out about 100 tons of ore a day, which is run through the concentrating machinery at the mill. The product of the mill amounts to approxoimately twenty-five tons of concentrates for each 100 pounds of crude ore. The full capacity of the mill is 150 tons a day, and it is the intention to increase the output of the mine to this capacity in a short time. As the supply of concentrating material already exposed is sufficient to keep the mill running 'indefinitely, there will be no delay from lack of ore for treatment. treat-ment. As a matter of fact, it is considered that the doubling or trebling of the capacity of the mill would be perfectly practicable from the standpoint of supplies at hand. The mill itself is a model of its kind. It is equipped with a No. 2 Gates crusher, two sets of rolls, six sets of jigs, two hydraulic classifiers, four sets of revolving screens, two Huntington mills, six Wilfley tables and one Allis sliming table. The machinery is all the very best for the purposes for which it is intended and is especially es-pecially suited to the class of ores it is required to treat from the Columbus stopes. The power, derived de-rived from the Columbus generating plant, run by water pressure, operates five motors, the largest of 40 h. p. and the others of 30, 20, iy2 and 5 h. p., respectively. It has already been noted that the contract has been let for doubling the capacity of the power plant. The electric power station, from which comes the energy required to supply the needs of the mine and mill; besides enough additional power to assist in the operation of a number of nearby properties, is situated four and one half miles below be-low the mine. With the new units to be installed the station will be capable of generating-l,00p horse power. The South Columbus and the Alta-Quincy mines are both running their drilling machines with air piped from the compressors of the Columbus Co-lumbus Con., and owing to the increased convenience con-venience and rapidity of operation, they find it a very profitable arrangement to pay $5 a day for each machine so operated. ; ; Too much credit cannot be given to the Ja- cobson brothers for the development of this great enterprise in a camp that was once practicaly abandoned. After others had become wholly discouraged dis-couraged by the slump in silver, these men proceeded pro-ceeded by hard work and indomitable stick-to-it-iveness to demonstrate that the old camp had more resources than had ever been dreamed of, that eventually more money would be made from the copper and lead deposits than was realized in the palmiest days of the white metal. They have demonstrated this beyond a doubt, even under the worst conditions, and now that copper and lead are soaring in price, with every indication indica-tion that the use of those metals will go on increasing, in-creasing, while silver itself is regaining much of its lost prestige, the reward of these men's courage cour-age is destined to be greater than even they had reason to hope for. Going into the district at a time when others had little faith, they acquired an acreage compactly com-pactly and advantageously situated, and prosecuted prose-cuted the development as rapidly as their means would permit. When they reached the limit of their own resources, they incorporated the Columbus Colum-bus company, and with the means derived from the sale of stock, proceded with increased vigor in the work of opening up the rich veins which they knew to exist. About $250,000 have been If expended In developing the one and a half miles I underground workings, with its stopes and cross- I cuts and shafts, approximately $100,000 of this I amount having been realized from the sale of I ore. That every dollar of this has been judiciously I expended is demonstrated by the great amount of j effective work accomplished. As a result of this work, the Columbus Con. is no longer a prospect; it has passed that stage of development, and should properly be listed ; with the big mines of the state. It is true that much work will have to be done before the full ; extent of its resources can be determined, but its 1 physical condition is such that work can now be accomplished coincident with a profitable pro-l pro-l duction. It can be said that it is the policy of the company to follow up the showing already made i with extensive prospecting along the many un explored fissures and contacts with which its ter-i ter-i ritory abounds. But while this is going on, the bodies already , opened will be mined in the most ec. 'jmical and ! profitable way, and the steady stream of concen- trates will continue to flow from the mill to the market a stream becoming constantly larger as new machinery is added to the plant and as the ore reserves are enlarged. While, as has been set forth, the Columbus I Con. has already in sight enough ore to make a great mine, the company has not stopped with j! this. It has exercised good judgment and fore- , sight in the acquiring of fresh holdings, so that ' for years to come it will be able to continue pros pecting in virgin ground, with the prospect of at any time making new discoveries equal to or I even surpassing the veins already exposed in the ' Columbus and Howland tunnels. All of the Columbus ground is in the same i mineral zone as the Park City district whose great bedded and fissure veins have become world-famous in the production of millionaires. The formations are almost identical in character, r i. """" such changes as appear being not in the essential features of the rock and strata, but in the relative rela-tive proportions of copper and gold to lead and silver. Thus it will be seen that the Columbus Con. has not only a sure f"f,ure of steadily increasing, in-creasing, profitable production, but a good prospect pros-pect besides of entering the bonanza class of great mines. The directorate of the Columbus Con., in addition ad-dition to the Jacobson brothers, its original discoverers dis-coverers and developers, consists of C. K. Mc-Cornick, Mc-Cornick, B. F. Chynoth, W. B. Jeffs, and Arthur E. Snow, the latter being secretary and treasurer. |
