Show 0 T vve vv 7 vo i 1 1 AT ta T pi TT T P oh 0 MT MI BALDI ALDY RY BY J E F jars G 1 I Karr ayale DM division sion i i Darrin barring gr complex conditions caused by U unusual faulting 0 alo along ng the foothills on the V east and back into the mountains a dis tance of from threes to four miles the geoff 0 eos raad 1 I 1 logy agy ogy of the marysvale Marys Mary vale sTale division is ca easily uy read f it is clearly evident that at some depth tho the entire range 1 is with a broken y and faulted substructure uro of quartzite and that it may be credited to the devonian a age e A small area the Gol goldren dRun Is canyon road presents some contradictory evidence ovi dence the overlying limestone contains fossils credited to an earlier age than twilit the devonian its pres presence is an enigma and cannot tie be discussed at this time the preponderance anrce of i evidence ovid enco is that the area now represented hy by the mt baldy baidy range and its northern prolongation the 1 i galivan mounta mountains Inso between millard and sevier counties was under the ocean during the devonian age hundreds perhaps thousands of feet of sandstone was depos i ite d the Tho succeeding lower carboniferous period covered the sandstone sands tono math a thick boa bed of limestone at the close of 0 tho the lower carboniferous a gentle upward movement occurred and th the 0 area under discussion rose above the surface of theace the ocean an where it remained am during the enormous lapse of time that intervened between the closing centuries of the over loer carboniferous and well along towards the close of the age when an a almost worldwide world wide change of level occurred along the east we side of and parallel with what is now known astha mt baldy range a and nd its northern prolongation the range the eart earths hg crust was fissured from the he surface down to the region of molton molten tock rock a 1 the fissuring way was succeeded by faulting and an idea of the aho tremendous displacement may inay be formed from the statement that seer deer trail peak the highest elevation of quartzite is fully feet higher than the valley alley while the eastern section of the quartzite quart zito is burled buried beneath hundreds of feet of basalt and other eruptive material the displacement extended northerly a distance of nearly miles in savier valley the sandstone so conspicuous along the cast side of the Pati vant mountains mountain i is on bu the gast east side of the valley burled buried under hun ar perhaps thousands af arup er up t tion loll material this stupendous displace ment is known as t tho he sevier faulki in the vicinity of marysvale Marys vale a great us sure aure on tho the cast paralleled the sevier fault and is now marked by a fringe of 0 basaltic foothills and volcanic activity must havo continued over a long period after comparative tive quiet reigned along the mt baldy range the evidences of chicharo which charo aro found ln iii the he mixture of vol volcanic danic bombs and debris in a belt of oolite bullion canyon represent aja sia lateral fault extending westerly from the sevier faul faulta tt the apex of the divide beti veen two nt emilei and Dulli buhian fin is quartzite and is fully 1501 1565 reit reet the quartzite to the north morth of bullion creek another area of stupendous displacement exists along the cottonwood fault where doer deer trail peak rises feet above thet quartzite on the ridge to 40 south of 0 cottonwood the topographical and cross section maps toi which tho readers rea dere attention is invited will serve to illustrate tho the profound northerly and southerly faulting of theba sic formation of the mt baldy range the teachings of geology prove that tho the N I 1 tp c aro Z 0 A 1 I ca R hy VU 0 N ec e C e quartzite i EP izi V J E za ali 6 91 ino afo ta t e te M gy url 4 1 avei iz 91 1 L irl re P I 1 ir vu NIJ ora 4 al r K e V 4 ma 10 rl SO to ga A x avi ap R elaw T v N V iq iwo Q WV W V 1 ali G wa AW ill I 1 11 0 vil 4 t a vu wt I 1 k 4 1 ir 0 ali go it L IS k 9 rrb 4 la 0 OAK al Q gi M V 0 ass LT dynamical history of the region to the west and southwest of mary Marys marysvale vale is as follows abarge area occupied by sandstone with r a limestone capping because of the shrinkage of them the earths molten interior or because odthe accumulation of gases seeking lines liles of easement the crust was fissured and broken inho in to enormous fragments or blocks some of the great greab masses mass agg maintained in their position but the larger portion settled doan do wn into the yielding mass of underlying igneous matter F from rom those yawning fissures enormous enor moun masses of and birdseye birds eye porphyry oozed up tip from the earths melted interior and formed mountain masses thousands thousand 0 feet deep again the unstable crust quivered with intense seismic forces foi ces the old and but partially healed wounds wound were opened and new ft stires formed in tho the overlying eruptive mass and great dykes of mineralized erali crali zed porphyry now mark tho the location and direction of many of those ancient rents through m li the w weight i ailt of t the he superimposed super imposed mass of oc eruptive material ni ater lai the associated healand hea tand solutions aha t n 4 underlying sandstone was divas altered chan changed edo t to 0 the now familiar la quartzite there are several localities where the s sandstone escaped 1 those a agencies and r retains its old time characteristics and insensibly merges into quartzite us as it nears tile tho igneous lor for lations maU mat ions ons a the brief period of comparative quiet r T K which succeeded tho previous disturbances was broken by another uplift of the range J and alon along t the central portion extending from gol gold d mountain south a distance of some ten miles mies a great fissure was formed t i f fromi romi the surface down to the region off 0 r liquid fire the mighty force which split the northern portion ot of the mt baldy bald range also formed lateral fissures extending cast erly and westerly from the great central rent those fissures became lines of edse ease ment 1 dav or the vast arians of mag 1 ma becking egress t and if atrom rom molten depths depth the hot gaseous mud flowed upward and formed great dykes of which today cheerily cli clinks aks under the feet of an occa occasional a prospector e actor while the eruption of the phonolite pho nolito marl marks s the last throes of nature in the mt baldy region subsequent 1 local fissuring of the phonolite mccu occurred and in connection with other fissures already for formed nied became channels for foi the up viard vard and lateral how flow of gold and silver bearing solutions Pt extinct inet oc craters raters fields of dark colored tra chite ridges of volcanic broc breccia broccola cla dykes dyla i an and 1 I chimneys of obsidian in the prove that local volcanic forces were con 1 untied tinned oy over br a long period after the wide spread crup eruptive tiTo activity wid had ceased the readers attention is now directed mort more particularly to the topographical and i cros s s section action maps s while wo we investigate the J rj X economical results of dynamical forces just J 1 described T to 0 avoid confusion the great porphyry dyl dykes e only have bave been mapped and the veins eins along alon tho the trend of those dyles dykes arev 1 prominently drawn 1 the cros shows the deer trails trail 0 mine occupying a blanket contact which chic i dips to the north at about eight or to ten de arx groes grees and is hidden by overlying debris in 4 that locality the owners have blocked about tons tans of ore having an average value of oe ten or twelve dollars per ton about feet distant to the south many chany carloads of ore were shipped and which netted tho the owners owners 4 several beveral hundred dollars per ton in lead silver and gold i it is believed that ellb contact derived its fillin filling by solutions from froin the north where eruption rock is in evidence and probably associated with w a lateral fault the high grade ore to the south doubtless owed its origin to a secondary movement of solutions which passed through tile the large body of ore leached beached it and transferred the concentrates concentrates to the ap higher portion of the th e contact highler up on tho deer trail escarpment is situated the lucky luchy doy boy that years ago yielded a large quantity ot of high grade mercurial ore the origin of which is an un solved problem still hi higher c en an the mountain side is sit bated the once famous pluto like the lucky luary boy it proved to be a surface deposit in limestone the ore was almost pure sil i ver and with no visible reason for its pres once ence in a locality where conditions are seemingly so unfavorable the hatt first great porphyry di dyke y ice that tra verses almost tho the entire district occurs i about three miles west from tho mouth of f cottonwood canyon and occupies the great norf northerly herly and southerly fault line along I 1 this dyke is situated the nolson nelson a vein of gold bearing quartz that projects above the ilie ground like a great wall vall the branch vein is strong and its per ina in nency has been proven it yields s silver ana gold the standard is a monster ledge andi and yields lead silver and gold almost excle v ln in sulphide conditions on the north end of the dyke is situated i the copper belt to td the west of the crystal mine and I 1 tren trending ding northerly is a great dyke of por phyra that after traversing the marysvale Marys vale section bends northie northwesterly sterly into the gou gold t 1 mountain district along this dyke is sit bated the IL gwm ix r mtv i high grade ore and now has exposed a 15 foot vein that averages 20 per ton toll tile property is being worked by pittsburg Pitts burp people and ought to develop into a bon bonanza ariza down on the bullion creek side the dyko dyke forms tho hanging wall of the webster a i monster vein with great chutes ch ittes of ga galenat lena and crysta lizeY lead carrying gold and t VC sf N af NT 11 AI va n 0 o J V 0 QU v 7 bald aa r s rt y 3 sal M aft vj Z 11 L ay Phon clit e 11 aa rp h r 9 0 of rw I 1 G ati loorna oMnA Lo q A fro front nt co acael yon silver space will not permit of any description of the horse heaven and other fine properties along the great webster Ps 1 dyke another monster dyke cuts the country from the east side sido of mt alt delano over into bullion canyon there is a lar largo 6 c number of fine properties on the dyke and ous oils to it A of the maps will convince anyone at all fa camillar millar lam with jhb relation between i geological conditions and the occurrence of veins and values that the country to the I 1 west of marysvale Marys vale presents one of me most inviting fields for intelligent t investment to f be bb found in the united states GOLD MOUNTAIN DIVISION all alighting ht ng from the train at sevier station on the R or W R R the observant traveler to gold mountain will notice that Ahat the rugged and broken foothills are composed of basaltic material As one proceeds westward and enters clear creek canyon he will note within a mile or so of gold mountain and to the stranger is a subject of curiosity interest and study in some localizes loca lites the basalt caps cape tho the rhyolite but in a general way it merges so gradually into the rhyolite that no line of mar kation is visible contemporary with the great sevier Sc vier fault and extending westerly the earths crust was profoundly broken or fas along a line now represented by clear greek creek canyon and intersected and crossed by the great fracture which once extended irm southwest of marysvale Marys vale along the present apex apet of the range through gold mountain and onward to io the north into the range those principal fissures including ainu merable parallel fissures were openings for the upward flow of rhyolite and kindred eruptive material prior to the completo complete solidifying of the rhyolite the clear creek fracture reopened and basaltic material was wa s forced up through the partially congealed congeal bd rhyolite and which explains the blim blending dIng of the line di 01 contact beginning a short distance north of the Z 7 r Z g ln 1 aw S 7 0 A A AA J 14 ir vl ED AM A L V 05 pk V 4 S E 1 AN ks e 0 V tri 6 al 1 L ri all IX 0 all V A T 4 C 7 TY V A 01 awl TO P OG RA P H I 1 CA th c tal A G OL DIVISION N BALDY T MINER MINERAL AL BEEF L T the fact that the ilie gorke gorge has been ploughed sloughed hed deep in a bed of basalt which as abbi robinsons ansons ranch is approached becomes more colum nar in its structure Th thelier elied ed extends west erly from sevier stat station loir a di distance tance of some fourteen fourt een miles where rhyolite becomes the country aird forms tho the apex aper of the range I 1 the earlier geological conditions of the mt baldy mineral belt are described in the marysvale Marys vale division of the subject and to referred tho the basalt extends adino three to four miles north of the canyon and is also bounded by rhyolite and other eruptive orup tivo rocks the upward climb from robinsons to gold mountain is among basaltic buttes weathered to fantastic shapes and highly colored or discolored through tho the action of i strong solutions tho the basalt extends to annie laurie see topographical map a belt of birdseye porphyry extend exten ff southerly a distance of a mile milb or two and disappears under the more tec recent ent phon olitte bocles rocles to the east of tho the annie laurie an enormous belt comes in from mt AM belknap and forms the divide between kimberly basin and the head of deer creek and is also so far as exposure is conce rend the east cast local boundary of the birds birdseye eye this peculiar porphyry with its dark bue base awl freckle freck lecUl with almost 4 4 A specks and spots extends westerly over the tiptop TID top divide and down towards fish creek the dip of the magnificent annie laurie vein or veins is towards the west and ana on that thai side at a distance ot of perhaps or 14 SOU feet fact from the droppings crop pings is a dyke of porphyry 4 entirely onti icly distinct from the country variety the locality where the dyke is most prominently exposed is on the hillside to the southwest of the blue bird tunnel the tiptop divide is the apex of a large laige dyke of porphyry which occupies a northerly and southerly fissure or line of faulting the great sevier ledge with its marvelous marve lous wealth traverses tra versea this dyke on a southerly str strike ilce and upon which the tiptop and other bonanza bonan za claims are situated southwesterly from the tiptop the formation changes the birdseye bird soyo soye porphyry on the surface at least gives way to rhyolite and trach tra chite ite faulting is more conspicuous and explosive volcanic activity wore more in ili evidence within this aren area and well in to wards grand old baldy is situated the fine property of the trappers pride the geology ol of the locality is given by a gentleman intimately associated with the mines and is sas follows the country rock is altered which has undergone a series of faulting and thereby tending to malie make it pez pel t to the action of mineralizing mineral izing solutions the faults so far as ar developments have determined are parallel with the veins vein thus far no lateral faulting has been encountered to the east and southeast of the trappers pride and directly north of mt bol knap is a great field of pho nolUe nearly all of wiach is highly stained with iron oxide the locality yields beautiful specimens of nephritic phonolite several undeveloped but most promising veins are opened with short tunnels the decomposed filling pans gold in milling quantities in a general way the gold mountain faults dykes and veins trend towards that uplift represented by baldy and belknap and |