Show SOUTH DAKOTA METAL production the value of the gold silver copper and lead produced in south dakota for 1913 as reported from eighty productive mines ten of which were placers amounted to compared with the record yield of in 1912 according to charles W henderson of the united states geological survey south dakota has produced in the thirty seven years from 1876 to 1913 inclusive in gold and fine ounces of silver with a commercial value of 4 a total of the gold output in 1913 was fine ounces valued at 9 4 n nearly early 99 per cent of the total value the decrease in gold for the year was fine ounces in quantity and in value the production of 0 silver also decreased from to fine ounces smelting smelling Sm elting ore from south dakota in 1913 carried pounds of lead against pounds in 1912 the output of placer gold decreased from ounces in 1912 to 67 ounces in 1913 A total of short tons of ore was mined and treated in 1913 compared with tons in 1912 of this total tons was treated in the mills of the state yielding in gold and fine ounces of silver with an average recovery per ton of in gold and of 00 52 in silver the output of smelting smelling sm elting ore tons averaged ounces of gold and ounces of silver per ton the homestake Home stake mine and mills were operated continuously throughout the year and made an output of tons of ore which yielded bullion of the value of or an average of per ton compared with tons in bullion and an average of in 1912 in 1913 a considerable tonnage was mined by glory holing and by caving above the foot level the golden reward co completed a 75 ton roaster at its astoria shaft early in the year and experimented with the roasting of the sulphide or blue ores before the lundberg dorr wilson mill was closed in august having been operated since 1904 the boxton and bonanza mines of this company were also closed the mogul co was occupied in building a new mill at the mine at terry to replace the old mill at pluma burned in march 1912 the new mill will be of the continuous countercurrent decantation type and will be completed during 1914 the trojan mine and mill were operated steadily the new reliance mill was op aerated on company and custom ore at this property diamond drills have been installed for prospecting the wasp no 2 co mining by the open cut system using a steam shovel for stripping closed its mill in october until spring of next year the bismarck ton cyanide mill under construction in 1912 was placed in operation in april 1913 the dredge at mystic was idle and the placer output of the state was confined to small desultory sluicing operations principally near Pac tola pennington county with small yields from custer ouster custer county and from tinton binton lawrence county in pennington county development work was done at the forest city mine and work was commenced on deepen deepening iii g the shaft of the dakota calumet copper property |