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Show WESTEiRisr nucrisrxisra- - gazetteer. GEOLOGICAL DESCRIPTION OF WEST MOUNTAIN the alluvium, in the decomposed pyrites, and occasionally in MINING DISTRICT, UTAH. small quantities with the ores. The impurities in these ores are pyrites of iron, pyrites of copThis district commences twenty-tw- o miles southwest of Salt per, decomposed pyrites, oxide of iron, arsenic and silicas. Lake City, and is situated on the western slope of the Oquirrah The percentage of the ore varies from 12 to 300 ounces in silMountain Range. The principal geological structure ot this dis- ver, from a trace to $20 in gold. The average gold ore assays trict is quartzite or vitreous sandstone and dolomite, or magne- $10 per ton, and from thirty to sixty per cent of lead per ton. sian limestone. The quartzite appears in beds of great dimenThe prominent mines arc ; The Old Telegraph group, com sions, with thin seams or lamels of shale, which separate the prising the Nez Perccs Chief, Old Telegraph, strata at intervals of from ioo to 500 feet. In the southern, Montreal and- Grecian Bend mines. southwestern and southeastern portions of the district, two beds Telegraph group, situated northeast of the Old Telegraph ; of limestone, from 100 to 300 feet in thickness, arc observable then the Revere, Mayflower and Yosemite. from the southeast in most irregular foldings and frequent disloSouthwest of the Old Telegraph the Spanish Hill, Utah, Jorcations of the strata, which at present show a general strike of Live Pine and St. John, Live northeast and sonthwest, and dip northwest at angles varying dan, Excelsior, Neptune, Kempton, Yankee, Ashland, Hamlin. from 20 to 80 degrees. In several of the breaks and faults large In Copper Gulch the Lead, Miners Dream, Yosemite No. 2 dykes of dioritic, syenitic and horn blende porphyries appear. mines. They are extraordinary, frequent and well defined in the southIn Black Jack the Queen, Bemis & Hyatt, Chubb, Osceola and ern and southwestern parts of the district. The presence of these Lucky Boy mines. verifies the the breaks of the rocks, strata, occupying igneous In Muddy Gulch and Carr Fork and adjoining gulches the origin of such disturbances, as have upheaved, folded and broken Last Chance, Hooper, Stewarts and Sacred, Centennial, Bonham, the sedimentary beds. Yampa, Highland Boy, Bret Harte, Mormon Nell, Agnes, Chas. Ore deposits appear in this district : Dana, Honest Abe, Jersey, Saginaw, Saratoga, Burning Moscow, 1. As beds between the strata, forming bed or strata veins, exCroesus and many others. amples of which are: Yosemite, Revere, Telegraph, Old TeleIn Lower Bingham the Tiewaukee, Winnamuck, Dixon, Accigraph, Spanish Hill, Utah, Jordan, Neptune, Stewart, Lead, Live dent, Thrush, Caledonia, Pinkerton and others. Yankee, Bull Dozer, Saginaw, Bully Boy and others. Now to a few remarks : A short time ago I read in an Eastern 2. As contact veins between limestone and quartzite, limestone and shale, syenite and quartzite, syenite and limestone. To this paper, the Engineering and Mining Journal , an article signed Yosemite, and stating that most of the old Utah mines, and elass belong the Yosemite, Revere, Telegraph, Old Telegraph, particularly those of Bingham, had played out. Now that young Neptune, Grizzly, Ashland, Winnamuck, Excelsior and others. men does or should know better. I hesitate not in the least toas-se3. As true fissure veins in the syenitic porphyry, such as apthat neither Old Telegraph, Spanish, Utah, Jordan, Neptune, pear at the head of main Bingham canyon, beyond the Jordan Last Chance, nor many others, have played out in and Neptune mines, and in Black Jack Gulch, as the Bemis & Winnamuck, the least. All those mines need, and that is what all Utah mines Hyatt, Queen, Chubb and Lucky mines of Osceola. In Germany a miner need, is : Sinking through the Pyrites. 4. As fissures or gashes, breaking through the strata, to which asserted that there was no more good a very great number of the Bingham ore deposits belong: An would laugh at you if you and rich ores to be expected below the pyrites level. A single only example mentioned and selected amongst the many is the instance of the truth of my assertion, I give in the great Holz-appfissure. Kempton belt which runs and is developed far below the Pyrites from It is not my object here to explain the nature, character and merits of the different classes of ore deposits to their fullest ex- Lauenbourg, past Holzappel, Obcrnhof, Nassau, Ems, under the Rhein to St. Goarshauscn, a distance of more tent and meaning. The quantity and quality of ore in any of these deposits are the only and main standards of value for both than thirty miles. But here the fault is to lay : miner and capitalist. 1. Those who have the means hesitate in expending the As bed and contact veins must necessarily conform in strike and dip to the enclosing stratum, with all its foldings, slips, dis- same. 2. Others who have faith lack the money ; but the case is like tortions and disturbances of any kind, incidental to the upheaval of the same, folded into anticlinal and synclinal curvatures, so it this : Let one start and have success, and all will follow like will clearly appear that the strata are the true guides of the bedsheep their leaders, as they do in general in voting, although ded veins, at any point along the course of the same. Further, they all get indignant at this assertion. miners in meeting a fault should find out if the dislocation has The idea that God should have made the Utah ore deposits in been caused by an upheaval or by a throw. If the dislocation the land of the chosen people in this land of milk, honey and has been caused by an upheaval and you are working in the foot-wa- ll occasional snowslides is interesting. (I know something of snow-slidof the fault?, then you have to look for the dislocated, that is by experience,) and under such large promises for the futhe upheaved, part of your ledge in the hanging wall of the fault, ture, extending only to the Pyrites and no further, it is altogether and above you ; is it a throw, then you have to look for the fault preposterous, and that particular Young man must bear the Utah or thrown part of the ledge in the hanging wall of the fault true, people a particular grudge to write like that. but below you, and vice versa . In general the direction of the And in closing, I insist upon asserting that the Engineering clr dislocated part is indicated by a dirty trail, or a trail of Mining Journal did and does know better, and they arc in honor mineral matter and breccia of the enclosing stratum of rock. (See bound, after having stated the con, to state the pro of Utah German definition of Sprung and Wechsel, Ueberschiebung.) mines and mining. Syenite and granite appear at the head of main Bingham canyon and extend over the divide into Tooele county in a westerly diFour bars Ontario, of bullion in this city rection. RECEIPTS ; four bars Stormont, $6,450; one car Great Basin The ores in the West Mountain Mining District appear as galena, carbonates, sulphurcts and sulphates of lead and silver, ox- $1,250. Total, $12,811.66. As lead is going up receipts will ide of copper, ruby silver and free gold. The latter is found in greatly increase. No-You-Do- nt, - rt cl Lahn-stein,a- nd es so-calle- d to-da- y: |