OENTEAL AND EASTERN NEVADA. 



431 



Operations of the Consolidated Chloride Flat Company from the date of organization to February i, 1870. 



Month. 



1869. 



May 



June 



July 



August ... - 

 September ... 

 October .... 

 November . 

 December . . 



1870. 

 January .... 



Tons of ore 

 produced. 



381 



550 



900 



1, 100 



1,000 



740 



750 



1,450 



1,775 



8,646 



Assay value 

 per ton. 



5132 50 



106 75 



74 86 



56 77 



57 46 

 45 26 

 45 27 

 40 46 



40 36 



Yield per 

 ton. 



$107 80 

 85 68 

 52 25 

 42 59 

 44 13 

 34 32 

 31 70 

 28 10 



33 65 



Av., $43 46 



Total yield. 



$41,007 07 



47, 124 97 

 47, 028 26 

 46,849 79 

 44, 130 26 

 25, 394 01 

 23, 773 47 

 40,729 II 



59, 732 64 



375, 769 58 



Per cent, 

 obtained. 



8r.2 

 80.2 

 70.0 

 75-0 

 76.8 

 75.8 

 70.0 

 69.6 



83-4 



The total costs of mining and milling the above mentioned 8,646 tons of 

 ore amounted to $254,884 73, giving an average cost per ton of $29 48, which 

 leaves a margin of $13 98 per ton, between the yield of the ore and the cost 

 of producing and milling it. The mining cost, alone, was $14 88, and the 

 milling cost, including hauling, $14 60 per ton. 



Hidden Treasure. — The Hidden Treasure is one of the best known and 

 most important mines of the region. The deposit or ledge on which it is located 

 was the first discovered of all those that have made White Pine famous. It is at 

 the north end of the crest of the hill, and on the east side of the ridge, just over- 

 looking Applegarth Canon. The claim, located as a ledge, is 600 feet long. 

 The mode of occurrence of the ore is suggestive of a contact vein, as the de- 

 posits are at the junction of the limestones and overlying slates, which are here 

 conformably stratified, striking in a northerly direction and dipping flatly to 

 the westward. The ore-seam, where distinguished, appears to be from 2 to 

 4 feet wide on the average, but sometimes expanding to 15 feet. The de- 

 posits have been stripped along the ]ength of the claim, and the mine is also 

 opened by a tunnel at the east end. The ore produced in early days was 

 wonderfully rich. According to the returns of the county assessor there were 



