Show METAL OUTPUT OF MONTANA the value of the mine output of gold silver copper lead and zinc in montana in 1910 according to V C heikes of the united states geological survey was 48 against in 1909 a decrease of occasioned almost entirely by the lessened output of copper ores the value of the gold silver and copper combined was less than in 1909 while the value of the lead and zinc yield was more than in 1909 the value of the production of silver bow county which includes the butte district was 91 per cent of the total value of the metals from montana the decrease in value in this county was so that the combined production of the other counties in montana was slightly greater in 1910 than in 1909 the production of gold in 1910 was only less than in 1909 the greater part of the gold fine ounces or 64 per cent of the total was from ores and ounces or 17 per cent came from copper ores the placer gold in 1910 amounted to of which was obtained by dredging the gold won from placers was greater than in 1909 but that taken from lode mines was less production of silver the production of silver in montana in 1910 was fine ounces against 12 ounces in 1909 nevada now takes the leading place in silver output in the united states which montana held in the years 1909 and 1908 of 1910 output of silver ounces or 75 per cent came from copper ores and ounces or per cent from ores bullion at gold and silver mills produced only ounces while concentrates produced ounces and crude ore shipped to smelters shelters sm elters contained ounces silver boy county produced 10 ounces or per cent of the states production compared with ounces in 1909 production of copper the production of copper in montana decreased from pounds in 1909 to pounds in 1910 a loss of pounds the summit valley or butte district contributed all but pounds of the total lead and zinc the production of lead in montana increased from pounds in 1909 to pounds in 1910 nearly all the metal mining counties in montana made a small yield of lead but jefferson county with a production of pounds in 1910 against pounds in 1909 produced nearly half of the state output in both years of zinc output in 1910 which was pounds figured as spelter against pounds in 1909 the summit valley district in silver bow county produced all but pounds nearly ill all of the zinc ore was sent to concentrating plants and the concentrates produced contained pounds of zinc the crude ore sent to smelters shelters sm elters yielded only pounds the number of deep mines producing metals in montana in 1910 was against in 1909 and the number of producing placer mines was against the average total recoverable value per ton of ore produced increased from in 1909 to in 1910 there were short tons of ore from montana sold or treated in 1910 a de erase of tons or about 6 per cent the production of copper ores which amounted to nearly 90 per cent of the total tonnage treated declined tons only tons were treated in gold and silver mills and tons were shipped crude to smelters shelters sm elters but tons or 82 per cent of all ore treated were sent to concentrating mills |