Show MINING IN SIERRA SIER RA MADRE MOUNTAIN written for tb the e review by don maguire M E the sierra madre mountain in box elder E ider county this state has during the year 1901 made extensive headway in development the chief property there is the eldorado group of claims in which is the eldorado vein proper on this there is now 2000 feet of workings and an ore body exposed that will require a long period of time to extract the vein being worked upon is from twenty lour four to twenty six feet in thickness and although 0 very largely a concentrating ore yet there are large volumes of straight clean smelting smelling sm elting ore ready for the furnace when taken from the mine the vein dipping sharply into the mountain is one in which the workings were liable to be filled with water to obviate this inconvenience a drain tunnel feet in length was driven 1 during the year 1901 from this an 1 was wa made tapping the incline gsand thus drawing off water from the mine the tunnel was driven downward until it cut the vein on its dip feet from the outcrop of the ore body of the surface from this crosscut cross cut of the vein on the foot level the workings will be carried southeast into what promises to be the chief bonanza of the property above that level hitherto work done here has been almost entirely in slate henceforth much of it will be done in the limestone that lies immediately above and in which formation much ore shows up in aarom prominent 1 outcrop more than 1000 1600 feet in length that the eldorado is destined to become a mammoth producer there can be beno no question but as its ores area are largely of a class that requires concentration steps are now being taken to meet this requirement of the other groups of claims on the mountain little can be said more than that merely assessment work has been done in the year 1901 prospecting for new veins open to sight the very extensive copper lead that rises in the prince of india group and which rung runs almost the entire length of this property across the eldorado group and terminates in the mashera and napoleon claims near the great contact on this about 2000 in work was wa s done during the year 1901 and the results are assur assuring ing that it is destined to become one of the great copper mines of the state already in its shallow workings copper that will run as high h iab as 30 per cent has been encountered on very extensive areas of the vein surface on the euwanta group the tunnel during the past season was driven a distance distan ce ot ol feet and the owners expect that feet further will reach the eldorado vein which is known to penetrate the ground owned by this company on the santa maria group some development work has been done during 1901 and arrangements are now fully made to open up this very promising group during the coming year from present indications 1902 is destined tobe the banner year in the mine workings its in inthis this mountain which is the chief metallic repository of the northern half of the state the outcrop of ore in the highest region of the mountain is surrounded by obstacles difficult to surmount but these have been wrestled with and so placed as to be overcome and at the bottom of the mountain the veins which promise equally well with those on top will te be taken in hand during the coming year and made to release the precious metals that they have held during the ages of the past box elder county in the year 1901 began its first profitable shipment of ore and bullion from park pak pa k valley the century mine has kept constantly at work and is sending forth regularly its gold bricks the company having changed its method of reduction from a baldwin mill to the regulation stamp mill while the eldorado made its initial shipment which gave fair returns however the owners of the latter property finding that silica cut too large a figure have taken up the subject of concentration as already noted taken collectively it may be truthfully truthful lv stated that this county has reached a point in her history where her future as an ore piro producer ducer is assured and alrea already dyall all that has been done and the ore bacues uncovered would surprise those who have lave given no do at antion te to the of northern nori hern utah ogden utah dec 9 1901 |