Show utah copper without a peer NEW YORK NEWS LETTER our mr E N skinner reports to us on utah copper as follows were an analytical comparison made of the largest known properties and their es features such as ore bre reserves and long life demonstrated low cost of production intrinsic value earning capacity and potentialities given weight proportionate to their importance it would probably be found that utah copper would stand without peer among the greatest copper mines of the world an estimate of the tonnage now going from the mine to the garfield and arthur concentrators daily places this figure in the neighborhood of tons of which about 2200 tons are being taken from the boston property while the remainder is coming from the utah at the utah mine three steam shovels are operating on ore one of these shovels however is located on level E and merely shoveling ore and dumping it into the pit to be handled by the other two leaving only two shovels operating on ore for the mill three shovels were working in ore up to about a month ago seven shovels are working in overburden at the pit and the shovel which was taken off of the ore was removed to the capping near the office early in august one shovel was moved from the pit to boston consolidated overburden and a new shovel which had arrived was put in the old ones place two shovels at present are not working while four are operating on the boston consolidated territory in the removal of overburden the first day of september a new shovel arrived making sixteen in all all ore from the utah mine proper is being extracted by steam shovel while at the boston consolidated the underground method is still employed pending the removal of tile the overburden at the boston mine ore has been encountered on one bench but considerable overburden will have to be removed before shovel mining can be started about the middle of august the company shut down the boston Consolidate ds sulphide mine which was then shipping in the neighborhood of tons of smelting smelling sm elting ore daily to the garfield smelter the most important piece of construction work now being done by the utah company is the building of tile the new company railroad from the ille mines to the reduction plants located at garfield the line which will be sixteen miles in length to the mill and twenty miles to the connection with the san pedro railway is well under way and about forty per cent of the grading completed the line requires a large amount of filling and it is estimated that the grading alone will amount to also several tunnels and bridges are required of the tunnels there are two important ones one 2100 feet in length and another 1280 feet one bridge has a maximum height of feet and a foot span another is feet in height with a foot span and one feet in height and feet in length from these some idea may be had of the obstacles which confronted the engineers the maximum grade on this line is to be 21 and the curves easy the company is now considering equipping this road with mallet compound locomotives which will be exceeded by none in the country in point 0 of f tonnage it is estimated that the road will cost and should be in operation next july by owning its own line of railroad the engineers estimate that the company will save at least loc per ton of ore hauled and be assured of an ample supply for the concentrator a condition which they never had in the winter months from the R G western the copperton hopperton Cop mill of the utah copper company was shut down about the first august it had been treating in the neighborhood of 1000 tons per day this concentrator was a very old one and costly to operate consequently the curtailment at this point has tended to lower the average cost of the tons now going to the concentrators probably tons are treated at the garfield mill and at the arthur plant for the last four sundays both of these plants are said to have been shut down it is the intention of the management to remove the stamps from the arthur mill and install rolls and some of the machinery from the copperton hopperton Cop plant is now being sent to the arthur with the intention of installing same at that concentrator the garfield concentrator was designed to treat tons of ore per day this however has been brought up to nearly double its capacity and with the improvements now under way which consist chiefly of dry crushing until the chilian mills are reached and the use of the garfield roughing tables and the janney classifiers the ultimate capacity of this plant without any increase in the mill building will be from to tons a day at the arthur plant where the same method will be ap plied the present capacity of 3 tons will be brought up to production figures are not available but an assumption based on a tonnage of and average of the ore now treated the production at the present time would appear to be in the neighborhood of pounds per month or at the rate of pounds per annum which would indicate approximately 15 reduction from the month of may when roughly pounds were produced or at the rate of pounds per annum cost of production for the quarter ending june was per pound for the present quarter which ends september it is is expected that this figure will be bettered |