The ore deposits of Utah . American Fork Other districts Fine ounces. 1,574,, 515, 018. 90 J20, 842. 8711, 263. 77143,,139. 5128, ,,127. 8036,146. 96 4, 504, 650. 97 Value. $32, 556, 936 81,318,190 19,035,512 4, 367,178 2, 967, 674 767, 739 586, 978 500, 529 271, 373 747, 224 93,119, 333 Gold is present in practically all the metaldeposits of the State except the iron ores andthe sandstone deposits of the Plateauregion. In but few districts, however, isthe most important metal production in gold,and only one of these, Camp Floyd (Mercur),ranks among the important
The ore deposits of Utah . American Fork Other districts Fine ounces. 1,574,, 515, 018. 90 J20, 842. 8711, 263. 77143,,139. 5128, ,,127. 8036,146. 96 4, 504, 650. 97 Value. $32, 556, 936 81,318,190 19,035,512 4, 367,178 2, 967, 674 767, 739 586, 978 500, 529 271, 373 747, 224 93,119, 333 Gold is present in practically all the metaldeposits of the State except the iron ores andthe sandstone deposits of the Plateauregion. In but few districts, however, isthe most important metal production in gold,and only one of these, Camp Floyd (Mercur),ranks among the important gold-producingdistricts of the country; others are the dis-tricts in the Tushar Range and the GoldSprings-State Line section. Gold, however,is produced in several districts where othermetals constitute the more valuable part ofthe total output, notably in the Tintic and 132 ORE DEPOSITS OF UTAH. West Mountain (Bingham) districts, in bothof which the yield of gold has been greaterthan in the Mercur district. The relative. FiGtTRE 15.—Diagram showing relative importance of mining districtsof Utah in production of gold, 1S65-1916. importance of the different districts in theproduction of gold to the close of 191G isgraphically shown in figure 15. Although gold was the first metal to beproduced in important amounts in the Stateits output was not large till the late eighties,when the Tintic district became important,and did not pass the mdhon-dollar mark tillthe early nineties, when the cyanide processwas successfully applied to the ores of theMercur district. The yearly variation in the production ofgold is shown in figure 16. After 1890 theincrease in production was rapid and, withthe exception of a few years, continuous till1906. Since 1906 there has been a generaldechne, which was very considerable during thedepression of 1907-8 and which, though in partretrieved in the next few years, has not yetbeen wholly recovered from. The decrease due to the exhaustion of themost import
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectminesandmineralresou
