Show colorado metal output in in 1914 the output of colorado mines for eleven months of 1914 with an estimate for december according to preliminary figures by charles W henderson of the united states geological survey indicates a yield of in gold ounces of silver pounds of lead pounds of copper and pounds of zinc in terms of spelter and zinc in zinc oxide with a total value of compared with in gold 9 ounces of silver pounds of lead pounds of copper and pounds of zinc with a total value of in 1913 this shows an increase of in gold and decreases of ounces in silver pounds in lead pounds in copper and pounds in zinc in addition to the decrease in quantities of silver and the base metals the falling off in average value for these metals caused a decrease in value of for silver for lead and for zinc the tonnage treated by the globe leadville pueblo and salida calida smelters shelters sm elters was approximately the same as in 1913 copper ore from rico and copper matte from ouray were shipped to plants in utah cyanide precipitates and copper ore were shipped to omaha the copper matting lant at ouray was operated steadily during the year and a ton increase was made in its capacity construction work being completed by the end of the year 1914 the tonnage treated at the united states zinc co s magnetic plant and smelter at pueblo was less than in 1913 the gold output of cripple creek teller county was an increase of this is the largest production for any one year since 1908 cripple creek to the end of 1914 has produced in gold the roosevelt tunnel continued to lower the water level gradually except in the vindicator and golden cycle mines where electric pumps installed in 1913 are used in july 1914 preparations were completed for continuing the tunnel to the vin decator golden cycle territory and since then the tunnel has been advanced at the rate of about six feet a day the golden cycle and portland mills at colorado springs were operated steadily with a considerably increased output cyanide mills in the district also made an increased yield the union mill at florence was idle the tonnage of smelting smelling sm elting ore from crepple creek increased appreciably lake county chiefly from leadville but also from the lackawanna gulch and st kevin districts produced in gold ounces of silver pounds of lead pounds of copper and 79 pounds of zinc with a total value of against in gold ounces of silver pounds of lead pounds of copper and 93 pounds of zinc with a total value of in 1913 the output of zinc carbonate was tons of 24 7 per cent zinc against tons of 2745 per cent zinc in 1913 the zinc sulphide smelting smelling sm elting ore and concentrating ore combined increased from tons of 23 per cent zinc in 1913 to tons of 22 per cent zinc in 1914 the zinc carbonate ore was treated at smelters shelters sm elters in kansas oklahoma illinois and biscon wiscon wisconsin sin and the zinc sul bhide was treated at the empire zinc con com banys magnetic sp ea ration plant at canon city at the western chemical companas Comp anys sulphuric acid wet concentration and magnetic separation plant at denver at the united states zinc companas Comp anys magnetic plant and smelter at pueblo at the zinc oxide plant at coffeyville Coffe kans and at other zinc smelters shelters sm elters A 50 ton zinc oxide plant was built at leadville for the treatment of zinc carbonate ores of 16 per cent or less but was operated for only a short period the leadville district mill was remodeled and the minerals separation flotation equipment added and after considerable experimental work was operated on zinc lead sulphide ores from leadville and eagle county some zinc sulphide ore was also treated at the sutton steele steele companas Comp anys dry separation plant at denver during the year but in december this plant was closed the un watering of the downtown mines at leadville seems now assured electric pumps and motors have been ordered and surface preparations have been begun for installation at the penrose shaft the san juan region of dolores la plata ouray san juan and san miguel counties produced in gold 2470 ounces of silver pounds of lead pounds of copper and approximately pounds of zinc compared with in gold ounces of silver pounds of lead pounds of copper and of zinc in 1913 there were increases for gold of in ouray county and of 10 in dolores but decreases of in san juan in san miguel Nl iguel and of in la plata there were increases for silver of ounces in san miguel and ounces in ouray but decreases of ounces in san juan ounces in la plata andi and ounces in dolores dolores county rico san juan county and san miguel county all showed heavy decreases for lead copper and zinc the tomboy company produced no zinc concentrate cen as the montana vein contains little or no zinc zinc ouray county because of increased production a at the camp bird the steady production of the wanakah mill and copper matting plant and the successful application of notation flotation to the atlas ores showed appreciable increases for gold silver and copper output and a small increase for lead boulder countes coun tys production was in gold ounces of silver pounds of lead and pounds of copper an increase of in gold ounces in silver pounds in lead a and 11 d pounds in copper I 1 chaff Cli affee e 0 county produced in gold ounces ounce s of silver pounds of lea lead d 30 jio pounds of copper pounds 01 ol zinc a considerable and increase for all the metals except zinc equaled the 1913 yield clear creek cou county apty pty s output was in gold ounces of silver 2700 pounds pound s of lead 4 pounds of copher and pounds of zinc an increase of in gold old an and d small in creases for silver and copper but a consid erable decrease for lead and an appreciable decrease for zinc gilpin countes coun tys output was in gold ounces of silver pounds of lead and pounds of cop per including ore mined through the new house tunnel the pitkin county aspen yield was 0 ounces of silver and pounds of lead a decrease of ounces of silver but an increase of pounds of lead but for the fire in the smuggler workings the output would have been even larger creede mineral county produced 18 in gold ounces of silver 1450 i pounds of lead and pounds of copper but no zinc an appreciable de crease for gold silver lead and zinc hinsdale countes coun tys production was nominal owing to increased shipments of lead ore from italian mountain and of lead zinc from whitepine White pine there was an increase for lead and zinc in gunnison county the output of gold bullion from dredges and pocket mines at breckenridge summit county was an increase of the total output of the county was in gold ounces of silver 1 pounds of lead and pounds of zinc eagle countes coun tys output came chiefly from red cliff but included a small quantity of silver ore from the lady belle and north dakota mines in the brush creek district the total yield was in gold ounces of silver pounds of lead pounds of copper and pounds of zinc a small increase for gold decreases for silver lead and copper and pounds increase for zinc the park county placer yield increased but there were decreases for all the metals from lode mines shipments of copper ore from parkdale barkdale Park dale fremont county added an a appreciable ap pp quantity of copper to the states yield |