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Show UTAH MINES 4 """ '" 1017 Outlook. By tho unusually sever winter of 1916-1917, tho production of the mines of Utah was reduced so that the state's output of all metals in the first six months of 1917 will not exceed that for tho corresponding half of 1916, according to V. C. He Ikes of tho U. S. geological survey, sur-vey, department of Interior. Many of the mining camps were at times Isolated by snowslldes, which blocked tho transportation of ore from Park City, Tlntlc, and tho Cottonwood districts. dis-tricts. Ore received at the smelters from the mines outsldo of Utah nc- cumulated In the railroad yard and i unloading was delayed on account of 1 .freezing in tho cars. Then a pro-I pro-I longed shortago of coal and coko 1 caused smelters and mines alike vto 1 be operated at reduced capacity. As I i a climax, a strike for an Increase in 1 wages closed, for a Bhort time, ono ,. j.., of the smelting plants. Extensive a) improvements and enlargements of " " smelters and milling plants in tho S state indicates a greater production I In the second half, which may offset I nny decrease during the first six I i months. ! In 1916 tho copper output, reported report-ed by operators In Utah, amounted to 240,275,222 pounds, over three-fourths three-fourths of which came from tho Utah Copper property at Bingham. The company's 4000-ton leaching plant 'for treating tho oxidized ores that cap tho sulphides Is nearlng complo-'tlon, complo-'tlon, and when tho units recently added to tho Magna and Arthur mills aro in operation tho plant should bo treating nearly 50,000 tons of copper ore dally. At present about 38,000 tons of oro aro treated. In April this company produced 17,-231,512 17,-231,512 pounds of copper, and the production for tho month of May Is expected to bo more than 19,000,000 pounds. A higher recovery of metal not only copper, but lead and zinc Is being made at theso mills, as well as at other mills In tho stato, by tho use of flotation concentration. ' Tho production of silver In 1916 amounted to 13,253,037 ounces. Tho Incrcaso In 1917 depends on tho output out-put of lead ores, which promise another an-other record yield. The output of lead In 1916 amounted to 201,490,-075 201,490,-075 pounds. Success has been achieved at Silver Sil-ver City, in tho Tlntlc district, by tho use of tho chlorldlzlng-roastlng process In treating low grade siliceous silice-ous sliver ores containing somo gold and copper. Several cars of silver bullion haVo been shlp'ped to eastern refineries since tbo begglnning of 1917. Tho production of zinc wll probably prob-ably show a decrease, as the output from tho Tlntlc and Promontory districts in Beaver County has fallen off greatly. In 1916 tho total State output of recoverable zinc was 29,-572,528 29,-572,528 pounds. At Park City an electrolytic zinc plant was started early In 1917 but is still in tho experimental ex-perimental stage. The total valuo of tho production of gold, .silver, copper, cop-per, lead anil zinc In Utah in 1916 was $89,268,6$4, which may be exceeded ex-ceeded In 1917' if tho present prices contlnuo. |
