Show r m v MIMI N rN NN M r N J I r N AAA Mr r s W iNV N r J Lt oN INv IU M J MJ j Iy m NV M m I l It i I Tilt SIL VEl MINt FRISCO DISTRICT c I N N W u N J hu Uh tl 1 ff I I tH n M I I 1 I II data went warn fLu III IIII I following by D J I to tho News ewI M Mh J I Jt K Location mid and t fhe Horn In iu the Nan H n is II I about Bear Ull south of at l ono ana mile th thI It Ite lies on nn county aunty ver or at dank I southern them sad lUll ml ur of the U the forms forma range mn This ThU tango Francisco Han flan sad mouth lOuth and be belongs belongs north I name me of 01 longs to lea II type to The UW a basin bas lIal been given I DUlin till the rent In the ru ranges 8 occur the tho I from arid area alel II Wasatch on the them th east a It the tl the tho wt This r t Sierra m Nevada on Jon Joni I Its 1111 structure which i 1 le remarkable for tor 1 j of ot narrow and frequently quite chains rugged mountain el elevAted and v north and south MUth I with n II it triad trend Tho Thu San l co range Is only onty miles long Its I about fifteen three miles milos and Ind nd several about l width Is l I ol of over oer of Its Iw peaks aks a attain n on nn I I ono thousand feel eel above tile the adjoining valleys are nearly I liens and feet son IWI are I 1 I the Sou y Like nearly nil tho basin t j rising I huts steep slopes l co and abruptly from the I rather almost continuously from rom summit There Thelo are lire no f so to streams la In tho the canyons All the time water r obtained in III Um this district is III found In n it afeW I few very feeble f rl n nI Tito Horn MinD was wasl l i I discovered by James and n Shut In August 1816 It Is said that 1 discovery was accidental for time the great groot vein Is la almost entirely hidden by wash j 11 The Tho above named prospectors were do doIn Inn In their annual aM work on onI the claim which way was located I In 1871 This claim lies lIos to the west wort or of ortho ortho tho ho Horn Silver Sliver nail and higher up 1111 on the cast ewt elope of or Grampian mountain where I re the cropping of many small fault and gosh gash veins ulna In time the HI show much Iron stained material m Whims While doing this work orl tite Iho I Imen melt camped c at lit the base of ot tho mount f tl aln The Th e trail nil front from r the camp to uthe the tho working place crossed tho the great Horn t Stiver body One Ono day taking a u arest uI II I rest on o n the tf trail one OM of tho the men turned over ov a 11 boulder Tho The great weight of ot I f 1 this thin rock rack attracted his attention andI andr and nul on closer Inspection he lie found It to be bG ben I IJ ion 1011 iI n r lend carbonate Tho The find was shown to Mr N 1 NV JN aei rt YS L ti Jt r fJ f 1 k Q n k th r 4 r rA A IN INu u D tt Ids his partner and they to sink sinka a 1 tow few fp foot feet Th Flue shaft abaft li d wild solid ore oro only a n tow row feet from tram tho thu e and entered tho the ore or body which Uy lW Its 1111 wonderful nod and groat I ono attracted tho the attention of al the mining world Lynn out Hawkes sold soW their dis discovery covery to 0 O Campbell Cu August Augustus us lJ Dennis Hun and ami 1 Matt Malt lat t Cullen Cul Cui Cullen CuiNI len NI hose developed the ore ort holy body timid and mined rich I ore arc In III li thoy they soul Bold till the nine mine for fOI OO lo to lothe II the th company As AM near un ua ran can I bo be ascertained tho the total production of ot the Horn Silver mine IB 18 about COO oeo General Geological In the time San Sari Francisco rang man L g and neighboring l g valleys valleye the lie Ihl San Francisco mining district their are aro exposed Rolli beds to a thickness of several thousand feet feel consisting of or and shale Through and be W w N 0 ro tJ nn uroR I T twin A yh t ti fJ M i I usi t Q r it I I If a w L 4 1 t h t Ct e tl a r t t it J t f r f r rt V nJ I t tA UI JIu OJ Pr J A Ir r ff ti tiN N wm t 1 tem em dm j r ri f l iw I IonN onN SILVE WoIn INGS u LEV yi TroN n tween those roche wore svera In ln nt different inse rt periods and from onta musses of or eruptive rocks which In purl part burled the sedimentary formations but sufficient remains ex posed nayed po ed to tho too geological g structure re of ot tho tine district Flue Tho Igneous rocks oc oe coning In lit I n this Include He Ite quartz porphyry and basalt Taken together late tho Igneous WW I I M l y WI WIt r a tf ii i t 1 i d J I f i tr r It MORN HORN SILVER SURFACE MAP rocks locks cover cOler by hy for far the larger IlIn r part pait of ot the Ban Sou Francisco co mining district Tho Thu as M 1 well ns II the orup eruptive live tive rook rock masses mo urn much that this thie region lerlon has hUA been one olle oneat of or great volcanic activity also sub subsequent subsequent sequent to Ur tho the of tho the Igneous locks Champion tho the Routh end cad of ot tho the Situ San range Is IA largely built up 1111 of Or ono In III n a I structure striking about north and 11 1 south find anti dipping from flom ten tIll to forty degrees The rill horn are aro much and by b small faulty faults anti and dikes of or Igneous locks rocke Along tho thu eastern base of ot the mountain appear and from th the of or the th volley valley and 1 11 II hills lull to tho cast The rIll lino IIno of ot contact of limestone and IndusI to marl mark t th it in great rant vein sn upon t which the i Horn Silver Buyer Is hI located located Grain plou mountain mi Is separated from tram tho the other oilier portion ot of tho too range 11 II go by n a alow I low pass Tills T This IIA pass and also llao the canyon 1 u h I 1 TT N M W WJ on the east cast nna lId west went st slopes ot of tho Ufa tango ranio follow rollow an fault North ai of tills His fault nult mid abutting the tho milestones la hIlL 1 a IL rent muss hums of ot monyon Ito tills lids rock forms the Iho of too tho for fur nearly two miles to tho the north oft ell hs Ht m hero ro Oil for a 1 considerable con dl p in tho time Part of r the thi range cov mid and 1111 deposits on Of O Its women western slope Occur our the th oro ern dopes IB of the th Ird Cup Plc and Imperial 1 companion I rime Tho Horn host silver Horn Silver vela vein Is n a fault Which t tenda me x enda along the tho u of plot plon mountain To rite of tho vein IB Is about north and 1111 it 1111 11 to tn th ca CUll In an nu h Irregular Hue Hoe SO hast Section Tim Tho foot willi on nn limo tho west Vo t of If tho limo vole vain lj iy time the wall on tho the oust n II afU The la Is by Y evidences of ot slipping In limo Iho and ami formations along nub fissures to II tho the main o of or tho the veins furthermore limo tho vein Coln Is 18 displaced by h east t anti anil wont want faults See SIO surface map liP Tho east MAt welt nest c t taupe and displacing time the time tho vein are aro encountered In tho ho various mimic workings and prove to bo be of only enly limited I CI extent Apparently they tItO lunD bravo produced no separations HOp or displacements The Tho dislocations lo I enst nit IIII greatest nt It tho the then surface n less 11 at IH iS gained and tho the faults Into info fractures Seo See Horn Sliver Silver Those Phase faults previous to the tho of ot oro produced by bv till the faulting t anti and fIll 11 II ing Inu especially at ut the Intel of ut tho ihn faulty with tho vein whorl where It in III places exceeds 1 a n width of or feet feel Tim The hm Immense bodies of or deli occur In art this lids material The bonanza portions nun aro mind found at nt the tho of ot the tho vein vela with tilt the west fu II It II designate tho time main channels which the tho solutions passed and aul a 1111 along which In favorable places they Iho do sic posit their The n null ed or fault nult material consists ts mainly of Igneous J lock loJ tho thu hanging wall 1111 w nil and Homo m much changed Od lime limo limestone limestone stone H hi I rotund found nee near tho the fw As AI a n stuffier matter of or It was wn found that lint time the solid limestone formed n a I sharp roun nry line IIno of or the tho ore bodies furthermost tho the many openings enter enterIng Ing lug this with wall revealed the tha suet faut that thlu rock Is III practically barren even within n o foot or two or 01 rich Ilch ore ern On the time other hand there In Is no division d I t between tho ho I 11 01 ore etc e and the time barren butt In ron mater material ann arm ial one guides grades off oft Into dire other oilier Hut over largo large sections of ot the IllI mine the crushed material was so ao mineralized that nI T J WJ N y y u INA I trout flom the tho to Io the tho rIlLY T y ole cue The ores Ort of ot the tho Horn silver Sll or mine im essentially loud silver 1110 It lug Ing ores mot carry front from 25 to 60 CO per rent nt of ot end nor Ule im m jo o e i to 11 to 10 n lr r par ton 1011 n a of about per ton loll In It fold gull nOlI i quant t m of tint sine of lr r eo OJ per Item The Jho unchanged 1111 ore oie III tho lower workings worl invariably n nhu 10 II souse some copper Near tho time down to lu about tho the ninth level loul thin alq Ores ui an na sulphates tilt and r Ca ii hi e rites ales showing lowing hero here and thorn there noam N of f iu P hdM Tho 1110 mast and an sulphides predominate No doubt the tho ores ware i III a The nine most Ins I n 1 of et those so orl galena f the tho anion of f o these theio changed to MIK and ctr 1111 1 The copper i in III the tho sulphides wore Worl tram froth tho the upper portions of the II rut 11 bodies and ro In III the thi in m file Tho secondary deposits ii nn had n 11 occur tho time fifth ninth rih Wl levels IOel Vhf Tuey formed onui nul l 1 bodies of ot hh oren and great of or rich copper The rime ores ore d out and fully f tull In III Ul time thu mine amount i about I tons In Ili order older i t to oh fl an nn average value of ot this oro ore foe rno t tour 1 Rent sent to the tho Taylor H works near Salt Lake o city CIt 1 r average yield of ot this lot was I line 19 10 per 1 1 cent lend land 7 per pur eri silver 5 G oz 1101 ton tOil Hold gold old 04 or 07 o per tr trl luau lion 4 per cent cont sides 20 pr per I r rout UI 28 per 1101 cent cont The Tho copper Ol mo no nn tILl fat developed In the till mine mina on Oil till the wati lall side ld of or till the ore oro rn LOl body ly 8 Hoe SUI e l 1 It tt Is In front R Ii to IO fO o foe feet oat and about nl trot tee long lOll potent ii fl U have this ore Ono on tin iho eighth level where It up UI In III gnat gr ut of copper n or ore from fromn tills this burly body run rue as nl hldi ns as 40 per cent rent anti and n a fair fah of lit this on orl Is IA about 25 26 per cent Thin Is IH rime llie oro ore by L far the line II greater portion of all nil the tho mined The rIll low Jolt ores ore ru nn sirs sub nub jetted to 10 Tho Jho rumen will mill in It provided with a IL Coma usher rm 1 stamps and 18 IS Free Prue van vann n IW n The limo water valor Used tot for steam Stearn and n Iliin purposes is 18 obtained ol from time tho liou m of or the and also front n v i n situated about a 1 r nd north p r tit of ot Iho he l I hI mi m I It 11 Is ly th the writers nIt opinion that Hie Ih nr r ditties chutes xii 56 fur far developed extend to tn n a Brent depth that e development I of or the great will lead o all lo to II time the discovery of other othol ore are ItI VV Nv AA |