Mineral Resources of the States and Territories West of the Rocky Mountains ..., Količina 7U.S. Government Printing Office, 1875 |
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Zadetki 1–5 od 87
Stran 21
... Cañon , and the company's mill is about two miles below the town , on Silver Creek . The mouth of the hoisting- shaft at the mine is about 1,300 feet above the mill , a difference in al- titude which would permit the advantageous use of ...
... Cañon , and the company's mill is about two miles below the town , on Silver Creek . The mouth of the hoisting- shaft at the mine is about 1,300 feet above the mill , a difference in al- titude which would permit the advantageous use of ...
Stran 33
... cañons in which Panamint district is located . Of these , Surprise Cañon is the most interesting and prominent , smelting - works were first started , I subjoin the following table , which I think is nearly Capital involved in furnaces ...
... cañons in which Panamint district is located . Of these , Surprise Cañon is the most interesting and prominent , smelting - works were first started , I subjoin the following table , which I think is nearly Capital involved in furnaces ...
Stran 34
... Cañon is Happy Cañon , and to the north Narboe Cañon . Panamint Range is of considerable width in this vicinity , the distance from its summit to Panamint Valley being eight and one - half miles , and to Death Valley , as I am informed ...
... Cañon is Happy Cañon , and to the north Narboe Cañon . Panamint Range is of considerable width in this vicinity , the distance from its summit to Panamint Valley being eight and one - half miles , and to Death Valley , as I am informed ...
Stran 35
... cañon is very narrow , in places just wide enough for the road . The greisen itself is again perforated by dikes of diorite , and where the greisen ends we find a more extensive eruption of diorite , which incloses a small formation of ...
... cañon is very narrow , in places just wide enough for the road . The greisen itself is again perforated by dikes of diorite , and where the greisen ends we find a more extensive eruption of diorite , which incloses a small formation of ...
Stran 36
... Cañon . Hence the gulches which intersect the slopes of the mountain - sides must also cut the veins . In examining these points of intersection , we find that the veins are more or less disturbed and broken . It is apparent , also ...
... Cañon . Hence the gulches which intersect the slopes of the mountain - sides must also cut the veins . In examining these points of intersection , we find that the veins are more or less disturbed and broken . It is apparent , also ...
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40 feet amount assay auriferous average base bullion bed-rock Belcher bullion California Cañon cargas carried cent claim coal coke company's Consolidated contains copper cost country-rock County Creek cross-cut Crown Point deposits depth developed distance district ditch dividends drift east Eureka expenses extracted feet deep feet long feet wide flume Fork furnace galena Georgetown Gilpin County gold Gold Hill granite Grass Valley gravel gray copper ground gulch Hill hoisting-works hydraulic inches incline iron lead ledge limestone located lode metals miles mill miners Mining Company Mount Gregory Mountain Napa County nearly operations ore-body ounces owners oxide Placerville porphyry portion pounds profit pyrites quantity quartz quartzite quicksilver rich River roasting rock San Francisco seams shaft shows Sierra County Sierra Nevada silver slag slates smelting Sonoma County stamps stoping sulphurets sunk supply surface tons Total tunnel Valley vein winze yield