Full Text of “The Black Hills Illustrated” – Part 2 This file contains a full text transcription of pages 28-53 of “The Black Hills Illustrated” edited and published under the Auspices of The Black Hills Mining Men’s Association by George P. Baldwin. Scanning and OCR by Joy Fisher, sdgenweb@yahoo.com This file may be freely copied by individuals and non-profit organizations for their private use. Any other use, including publication, storage in a retrieval system, or transmission by electronic, mechanical, or other means requires the written approval of the file's author. This file is part of the SDGENWEB Archives. If you arrived here inside a frame or from a link from somewhere else, our front door is at http://usgwarchives.net/sd/sdfiles.htm SCRAPS OF EARLY BLACK HILLS HISTORY. BY S. R. SHANKLAND. Nearly twenty-nine years have elapsed since the writer first inhaled the exhilarating air of the Black Hills and gazed with rapture upon their marvelous scenic beauty and pristine loveliness. At this early period in our history the surpassing magnificence of the natural scenery had not been marred by the rude hand of the miner, the grand picture being still in that attractive and fascinating state of perfection in which the deft and faultless hand of nature had left it, a marvel of scenic beauty and matchless grandeur. It was in the fall of 1874 when the report of Gen. Custer's expedition, which contained a mention of the discovery of gold in the Black Hills, created a considerable degree of excitement throughout the country, resulting in the formation of what was known as the Gordon party, which was formed at Sioux City, Iowa, with a view to determining the then mooted question as to the presence of gold in the Black Hills in paying quantity. This historic party succeeded in perfecting its arrangements for the trip late in the fall of the year named, arriving in the Hills in December. They established their camp on French creek, at a point three miles below Custer, where they at once proceeded to erect an elaborate stockade for protection against Indian invasion, inside of which were erected six cabins for the comfort and convenience of the party. In the meantime, pending the building of the stockade, two of their number were engaged in prospecting tor gold, which was found in quantity sufficient to justify further pursuit. Having fully imbibed the opinion that the region was one of exceptional promise, Mr. Gordon returned to Sioux City, accompanied by another member of the party whose name was Witcher, and spread the glad tidings of their golden discoveries, which largely increased the measure of public excitement. The result was the formation of a number of expeditions for the new Eldorado during the month of April, notwithstanding the knowledge of the fact that the Gordon party had been taken out of the Hills by government direction. At this critical period in our history the portals to the region were doubly sealed, and in addition to the strong opposition of the Indians, the stronger opposition of the government had intervened, making it extremely difficult, and even dangerous, to make the trip. This, however, did not deter the more resolute and determined souls, who pursued their course, not even halting when they learned that a large party in advance had been taken into custody by order of the government, their wagons and outfits, including their guns, ammunition and all of their personal effects, destroyed by fire, and the members of the party taken as prisoners under guard to a military pest for trial. Notwithstanding the obstacles which beset the pathway of these avant couriers of civilization, no less than 1,200 had reached their destination before the 10th of August, the time appointed for the departure of all the so- called trespassers upon the sacred rights of the great Sioux nation from the Hills, in accordance with a proclamation issued by Gen. Crook, who, with his escort, was at that time present and personally supervising this unhappy affair. By and with the consent of Gen. Crook, seven men were permitted to remain in the country for the purpose of looking after the interest of the outgoing miners. These men took up their residence at the Gordon stockade, where they remained until November 16, when they departed with Capt. Pollock and his command for Red Cloud, returning to the Hills early in December. The departure of Capt. Pollock and his command, who had been guarding the region against the so-called recalcitrant miners from August 10, was followed by a still greater influx of people, who, it is pleasing to note, did not have to contend with further government interference. Custer, the pioneer city of the Black Hills, had by this time gained considerable notoriety, having been originally organized in July under the name of Stonewall, reorganized and rechristened under the name of Custer City in August, and again reorganized in December. It was not, however, until early in the month of January of the following year, 1876, that the building of the city may be said to have been fairly under way. As early as March, 1876, Custer's population was variously estimated at from 6,000 to 10,000, and her fame had spread all over the country. Under a provisional government the city progressed rapidly, assuming an air of metropolitan greatness that would have made much more populous cities of the outside world fairly envious by comparison. Her official directory embraced all of the officials necessary to conduct the municipal affairs of a city of ten times its population, including five police judges and a judge of the Superior court, from whose august decision there was no possible appeal. This was what may be termed Custer's boom period, which augmented as the days multiplied, invoked the wildest dreams as to her brilliant future. But alas! the fond hopes of the enthusiastic citizens were turned to ashes by the discovery of gold galore in Deadwood gulch, which resulted in one of the most remarkable heigiras ever experienced in the west. The gilded reports of rich gold strikes in the northern Hills in a few brief days had done its deadly work, and the proud city, with its great expectations and lofty hopes, was practically abandoned, as there remained but fourteen souls to hold the fort and await reinforcements from the outside world. There were at this time 1,400 buildings, all told, in the place, just an even 100 to each inhabitant. The remaining fourteen, realizing the danger of an Indian attack, constructed breastworks for their protection and awaited the turn of future events. It was three long and dreary weeks before their number was in any measure increased, and then only by a small number. Later on occasional additions swelled the population to a few hundred, when the work of mining development and other business ventures were resumed. REASONS AND RESULTS OF EARLY INDIAN TROUBLES. The following facts, which were furnished to us by courtesy of Col. James A. George, an attorney of Deadwood, who has made a careful study on Indian treaties, will give an excellent idea of the rights of the Indians at the time the pioneers first entered, and the force of circumstances which required a qualification, or, in fact, abrogation, of the treaties witli the Indians. At Fort Laramie in the year 1868 the great and last treaty was made with the allied tribes of the Lakota or Sioux Indians, for though there have been agreements made since, no treaty can be made since 1871, Congress having declared no treaty could be made with Indians after that date. It is a strange fact, but true, the written minutes of the treaty of 1868 cannot be found. Jackets that once held them can be found in the Indian Office and in the office of the executive clerk of the United States senate, but the contents are gone. This fact will account for the fact that the direct proof in what was the south boundary of the big Sioux reservation is gone. The published treaty fixes the northern boundary of Nebraska as the southern line of the reservation. This the Indians deny, and say that in all their talk the Minnetonka, or Big Water, called by the whites Niobrara river, was the south boundary. Right here the official records furnish indirect proof that the Indian is right, for as late as June 23, 1875, the Brule and Ogallala bands made an agreement to give up their rights to hunt in Nebraska for the sum of $25,000, but this proviso was put in and signed by both parties to the agreement: "Provided, That we do not surrender any right of occupation situated in Nebraska north of the divide, which is south of and near the Niobrara river, and west of the 100th meridian; but desire to retain that country for future occupation and use." By the terms of the treaty of 1868, beginning at a point where the north border of Nebraska touched the i04th meridian, and thence north on that line, all the country east of the line was the big Sioux reservation, and beginning where the 104th meridian crossed the North Platte River, all the country north of the North Platte River and west of the 104th meridian to the summits of the Big Horn Mountains was unceded Indian country, on and over which no white man was to go without the Indians' consent. Sitting Bull and his followers always occupied the unceded country. At the time of the Indian war of 1876, Red Cloud's agency was in the state of Nebraska, where Crawford, Neb., is now, and Spotted Tail's agency at the head of Beaver creek, just northeast of Red Cloud. In 1875 gold was found in the Black Hills. Whites came in and were put out by the military. Congress then authorized the president to appoint a commission to try and agree with the Indians for a cession or lease of the Hills. June 18, 1875, the president appointed the commission, headed by Senator W. B. Allison of Iowa. September 27, 28 and 29 the commission labored with the Indians in vain. Several propositions were made on several points, but the two about the Black Hills will be noticed. First. For a license to mine in the Hills, etc., the government would pay $100,000 per annum, the United States reserving the right to terminate the lease on giving two years' notice, and at the expiration of the two years' notice all private property remaining in that country was to revert to the Indians. Refused by the Indians. Second. They then made a money offer of $6,000,000 to buy outright the Black Hills. Refused by the Indians. The agreement of 1876 was made by a very small fraction of the Indians, a bulk of the Indians being on the warpath. August 24, 1876, a commission, headed by George W. Manypenny, was sent out, and in September and October made the agreement for the cession of the Black Hills. By this agreement the western boundary of the reservation was changed. The line was pulled east from the i04th to the l03d longitude on the north line of Nebraska. Thence north on the l03d to the south fork of the Cheyenne River. Thence down that river on the south bank to the intersection with the north fork, or Belle Fourche River. Thence up that river on the north and east bank to l03d longitude, and thence north, etc. Under this agreement the United States exchanged, giving rations, annuities, etc., for a fixed period, and agreed to give until the Indians became self-sustaining, which, the Indians hold, runs from that time to eternity. While under the treaty of 1868 at least 4,000 Indians should have signed any agreement to part with lands, as a matter of truth only 247 Indians signed. The deed was worthless. But it has been made valid by the Indians in the agreement made with the Foster-Warner-Crook commission of 1889. The treaty of 1868 and the agreement of 1876 were amended and ratified by the signatures of 4,463 adult Indians. Under this last agreement the Great Sioux reservation was segregated and the country between the Missouri River and the Black Hills opened up to white settlers. Under this agreement for all land settled on the first three years the Indian fund was to have $1.25 per acre; the next two years, 75 cents per acre, and after that 50 cents per acre, and all of lands undisposed of at the end of ten years the United States shall take over and pay into the Indian trust fund at 50 cents per acre. The United States was to give cows and bulls to the Indians, the increase to belong to the Indians, but the cattle given to be kept, except when too old, and then, under United States supervision, they may be sold. Schools were to be provided. At Rosebud and at Pine Ridge fine brick buildings, water, electric lights and steam heat is provided, and about 100 day schools on the two reservations. There is a fine non-reservation school at Rapid City, under the able supervision of Samuel B. Davis, assisted by a corps of diligent and able teachers. LOOKING BACKWARD 56 YEARS. Broad Thoughts in Condensed Form. BY MAJOR A. J. SIMMONS, M. E. The discovery of gold in California in 1848 marks the beginning of the most momentous epoch in the history of our country-of stupendous national, international and commercial importance. It was a new world-building era, involving the destiny of hundreds of thousands of people and millions yet unborn. The boundless possibilities of the gold fields were rapidly exploited by the energetic prospector until a vast untrodden region from Alaska to Mexico, from the Pacific coast to the Rockies, half a continent, was invaded and its choice spots appropriated by the miner. It was twenty-seven years later when the gold discovery, excitement and stampede struck the virgin Black Hills. The "Golden Era" inaugurated a unique and picturesque world in the western mountains devoted to mining the precious metals. It was the cradle of American gold mining and teemed with adventure, hardship, tragedy, romance and riches. Mining was then a gamble, pure and simple. No previous knowledge or experience was available and experts were unknown, but they soon grew to the occasion. Extravagant and fanciful notions prevailed. Miners were controlled by impulse, sentiment or a "hunch," and to hit the pay streak was a question of muscle and luck only, yet it was a most fascinating and serious business. The mine promoter was also there, forming a conspicuous figure in early- day mining. With picturesque language and dazzling free gold specimens he enlisted the sympathy and exploited the pockets of the credulous tenderfoot and eastern man-in which the latter acquired experience only. This system of financiering was worked to such a degree that Bill Nye's paraphrase of an early- day "gold mine," "a hole in the ground, the owner whereof is a d-d liar," came to be the popular accepted definition-and even at this late enlightened period there are instances where Mr. Nye's theory of mines would find ample verification. However, fifty-six years of practical experience and exploitation in the world's greatest mining field, which has attracted the intelligence of bright minds from our own and other lands, have transformed the crude methods of early- day mining to business and scientific principles. Marvelous strides have been made in the metallurgy of ores, invention and mechanics. The highest scientific attainments in chemistry, metallurgy and mechanism have been applied to the great and growing mining industry. It is no longer controlled by haphazard methods and luck, but has been reduced to a broad business basis. In approximating the value of a gold mine it is well to bear in mind two fundamental principles: First, mining is not an exact science; second, the laws of nature, as applied underground, are not fixed and immutable. While she is generally controlled by certain well-regulated and uniform laws, nature is fickle, and too often suddenly reverses her system. In arriving at the value of a mine many things are to be taken into consideration which occur to the practiced eye on the ground, and in such cases where a moneyed consideration is pending, a reliable mining engineer or practical mine expert should be consulted. Inasmuch as every locality or group of mines has distinct peculiarities of formation and mineralogical detail, more or less dissimilar from any other, the capable and observant miner who has delved in the district and is familiar with its characteristics would be well qualified to pass on the merits of a mine in that locality. It is a comparatively easy matter to ascertain the values in sight in a developed mine by measuring up the tonnage of ore, determining its value by sampling and assay, or better by mill runs of ton lots, and to arrive at the cost of mining, the proper process and cost of treatment and reduction of values to bullion. But there is no absolute certainty of the continuation of a vein or ore body in any direction beyond the actual points of exploration or of what is in sight. Here nature's book is sealed, absolute knowledge ends, as no human vision can penetrate the rocks, and the question of probabilities enters into the scheme-an uncertain and unknown quantity. Yet the student of nature undertakes to, and sometimes does, unravel the mystery. His attention is directed as to whether the mine under consideration is a true vein or fissure lode that received its valuable metallic content direct at first hands from nature's great laboratories in the depths of the earth-or is it of secondary origin?-therefore of irregular and uncertain tenor. He examines the geological conditions as to its favorable chances for veins and the mineralogical structure for the presence of known active mineralizing agents. What precedents of production and vein continuity have been established on contiguous ground? Is it on a belt or ore horizon, the trend of valuable mines in the vicinity? If the ore is of a character to be treated on the ground, the questions of water, timber and fuel supplies are to be investigated; if a smelting ore, transportation facilities and costs are to be reckoned. These are some of the general conditions that would attract the expert, while every case would present more or less special details deserving consideration. Small veins, carrying high values in gold and rich pockets of ore, while attractive and conspicuous for brilliant specimens and in high favor with all concerned, are not given a valuation by the conservative engineer much above the actual values in sight. He is too familiar with the freakish moods of nature, and knows full well the unstable character of such deposits. On the other hand, the large low-grade mines in lodes or fissures and horizontal deposits, which are conspicuous features in Black Hills mining, stand in high favor by reason of their continuous production and persistent vein continuity. Such veins are the ideal type of the miner, and only ordinary common-sense business precautions are necessary in determining their value. The so-called "low grades" are tantamount to mines with vast quantities of ore, low in value, but with a small margin of profit per ton, and operated on an extensive scale produce large and continuous profits. The low grades relieve mining of risk and elevate it to a first-class standard of business and financial investment, with stability and profits far above ordinary manufacturing enterprises; the finished product commands an unvarying price and open market in the mints of the civilized nations of the earth. The "prospect" or undeveloped mine is an important feature in every camp. Perhaps but a small percentage of prospects make mines, yet every great mine was once an insignificant prospect. Mines do not blossom out in the light of day, ready made to be claimed by the first tramp that comes along, but are developed, MADE by diligent work-often many years and large outlays of cash are devoted to the making of a mine. The prospect, therefore, is not to be overlooked or despised. The prospect is a living factor of immense possibilities in the world of mining. The bulk of the colossal fortunes accumulated in gold mining have been made by purchasing and developing cheap prospects. Any old-time, veteran miner may recall from his stock of fading reminiscences the prospects he has abandoned or could have controlled for a trifling consideration, which have since been developed into great mines. The profound skill of the expert is called out in diagnosing the prospect, in following up and marshaling the clews, indications and evidence upon which are builded the future bonanza outcome of the embryo mine. THE GEOLOGY OF THE BLACK HILLS UPLIFT. BY DR. CLEOPHAS C. O'HARRA, A. B. AND PH. D., PROFESSOR OF MINERALOGY AND GEOLOGY, SOUTH DAKOTA SCHOOL OF MINES. (Portrait following.) The Black Hills region is in many respects a typical geological unit. It lies within the forks of the Cheyenne river on the South Dakota-Wyoming boundary line, a much larger portion of the area being within the state of South Dakota. Separated from the Rocky mountains to the west and southwest by a distance of less than 150 miles, the region possesses many of the lithologic and physiographic features of that great mountain system. Structurally the region is an elliptical outwardly-dipping uplift, the more distinct features of which cover an area about 100 miles long and 50 miles wide, the longer axis approximately coinciding with the meridian except in the northern portion, where the general direction is to the northwest. By reason of its isolated position, its simple structural features and the many excellent natural and artificial rock exposures, the history of the region may be interpreted with a considerable degree of ease. The general system of drainage is distinctly radial. The two enclosing arms of the Cheyenne river wholly separate the Hills from other drainage systems and receive the many smaller streams from the more elevated mountainous portions, a high western limestone plateau being the main divide. In certain places the rapid erosion of softer beds has modified this general radial arrangement, a prominent example being in the formation of the well-known Red valley, which forms a nearly continuous depression, separating the higher central portions of the uplift from the distinct but less elevated cretaceous hogback ridges of the foothills. Many of the streams continue actively cutting their beds. Each lithologic unit with its particular and sometimes striking color yields distinctive topographic forms dependent upon relative capacity for resisting erosion, the result being that in many places features of rare interest are produced. The Harney Peak area of the southern Hills, with its bold pinnacles and walls of coarse bare granite rising from their forest-clad base of metamorphosed sedimentary rocks, presents a beautiful panorama, while the steep-walled canyons of Spear fish creek and of Elk creek in the northern Hills are among the most picturesque that America can show. Again, to the northwest along the Belle Fourche valley, where the horizontal sandstones and shales have been intricately carved by the various streams and where the brilliant and varied colors of the several formations harmoniously blend with a wealth of forest and pasture, overlooked here and there by the stately, somber forms of porphyry buttes, there is presented a view well worth many a hardship to see. The prominent topographic features are a high central basin of granite and metamorphic rocks of Algonkian age, surrounded in a concentric manner by a rugged, infacing escarpment of massive, white carboniferous limestone, a wide depression in the red triassic shales and a high run of cretaceous hogback ridges or foothills. Beyond these are the later cretaceous shale formations which give rise to the nearly level plains. Farther away, on almost every side, interrupting the otherwise monotonous approach to the Hills, there are abrupt tables and buttes of tertiary clays, large portions of which have been carved into forms that bewilder the imagination of the most fanciful observer. In the northern Hills tertiary intrusive rocks have greatly modified the general topography and in not a few instances have formed prominent landmarks. Terry Peak, situated near the center of activity of intrusions, is the highest point. It reaches an altitude of 7,069 feet. Some distance to the west of this is the Bear Lodge range, which culminates in Warren Peaks, marking a subordinate but important center of tertiary disturbance. Several isolated igneous peaks, differing little in petrographic and structural nature from the prominent peaks of the more intricately disturbed districts already mentioned, stand as tall sentinels among the lower peripheral ridges. Chief of these are Bear Butte, Crow Peak, Black Buttes, Inyan Kara, the Missouri Buttes, and the justly famed Devil's Tower. The highest point within the entire region, as it is also the highest point in the United States east of the Rocky Mountains, is Harney Peak. This is the culminating peak of the Harney granite range in the southern Hills. It reaches a height of 7,216 feet. The surrounding limestone escarpment rises high above much of the central portion of the Hills and considerable areas of the plateau along the western side in the vicinity of Crooks Tower closely approach the height of Harney Peak. The mean altitude of the plains surrounding the Hills is little more than 3,000 feet. The average elevation within the hogback ridges is approximately 5,000 feet. The rocks of the Black Hills show a wide range in age and character. Within the crystalline nucleus are pre-Camb'rian granites, amphibolites, schists, slates, phyllites and quartzites. Beyond this nucleus are limestones, sandstones, shales and conglomerates,representing a nearly complete sequence from Cambrian to Laramie. Their combined thickness is approximately 10,000 feet. Extensive overlaps of tertiary rocks are also present, while pleistocene deposits of various kinds occur widely distributed over the surface of the region. Silurian limestone is found in a few localities, but is of little importance. The presence of Devonian rocks seems as yet not conclusively proven. In the northern Hills there are porphyritic rocks in great profusion. Phonolites, grorudites, andesites, dacites, dioiites and lamprophynes are found and their recent careful study has aroused much interest among petrographers. To the prospector and miner they are of interest in that their intrusion has greatly influenced mineralization and the nature and distribution of the igneous masses have to no little extent been a determining factor in the occurrence of ore bodies. Fossiliferous beds are common among the foothills, while only a short distance to the southeast are the world-renowned White river bad lands, with their wealth of vertebrate remains. The sedimentary deposits were laid down subsequent to the upturning and metamorphism of the Algonkian rocks. These have had their various characters properly defined by recent study, the determined formational units receiving appropriate individual names. The oldest rocks of the region are the slates, schists and quartzites. They constitute the main central area of the Hills. Their dip approximates the vertical, while their strike corresponds fairly well in a general way with the meridian line. The quartzites are usually less easily eroded than the slates and schists, in consequence of which they not infrequently stand out with much prominence. Dark, basic, igneous bands occur in many places, their general occurrence being such as to give the impression of intercalation conformable to the original bedding of the metamorphosed sediments. These rocks have not received careful study, but they may be provisionally grouped under the name "amphibolites." They are commonly designated by the prospector as diorite or hornblende rock. Intimately associated with all of these are the granites of the southern and central Hills. In the northwestern part of the Hills on the South Dakota-Wyoming line, another small but important area of granite is found. A distinct feature of nearly all of this granite is its extremely coarse texture. The feldspar, quartz and mica, and even the less important and nonessential constituents, may be frequently found in isolated crystalline masses of great size. The rock is of the variety known as pegmatite, and as usual with pegmatites, carries an abundance of rare and useful minerals. Following the granites, which are later than the amphibolites but still of Algonkian age, there were no igneous intrusions until the tertiary. Then approximately coincident with the general uplift of the Black Hills region came the igneous bodies so abundant in the northern Hills. These for want of a better collective term are commonly designated as porphyries. They are generally, although not always, of a distinctly porphyritic nature, the large crystals being quartz or more frequently some form of feldspar, or occasionally hornblende or biotite. To mention all of the localities where these may be found would be a tiresome task. The following important mountains must suffice: Terry Peak, Bald Mountain, Elk Mountain, Ragged Top, Devil's Tower, Custer Peak, Bear Butte, Crow Peak, Inyan Kara, Sundance Mountain and Warren Peaks. Less prominent masses occur in great profusion and few important gulches of the region are free from good exposures when-structural details may be determined with much precision. The intrusions occur in the form of dikes, stocks, sills and laccoliths, few-regions in the world showing them in greater number or to better advantage. Intermediate and connecting stages of every grade are found and erosion has planed and dissected the rock masses so carefully that the faithful observer may easily read their meaning. Reviewing and collecting the foregoing facts with reference to the sequence of occurrence of the many phenomena, it may be said that in Algonkian time the schists and quartzites were deposited as sediments derived from some unknown archaen land mass lying apparently either to the west or to the northeast of the position now occupied by the Hills. Later these sediments were penetrated by basic eruptives and subsequent to this penetration the sediments, as as well as the basic eruptives, were ramified by quartz veins, many of which are gold-bearing. Following the eruption of the basic rocks and after most or all of the gold-bearing quartz veins were formed. extensive granite intrusions occurred. At some time during these disturbances great metamorphism took place, the slates and the schists reaching much the condition in which we now find them. During the middle or latter part of the Algonkian period the sea shallowed and the land, rising above the sea as an island, readied a considerable height. The rocks thus brought under the influence of erosive agents supplied much or all of the sediments which make up the Cambrian strata. After this the land became submerged, the later paleozoic and the mesozoic sediments indicating at first deep water, followed again by an unsteady tendency toward shallowing of the sea. Near the beginning of tertiary time great disturbances took place. The region was lifted quite above the sea and deeply cut by outflowing streams. Sea conditions disappeared, leaving the land partially or wholly surrounded by a considerable body of water in the form of a lake. Approximately coincident with these changes the porphyritic rocks of the northern Hills were intruded, and by their subsequent denudation and degradation added their portion of sediments to the surrounding lake. The lake then disappeared and upon its dry bed the modern streams have trenched their way. HOW TO LOCATE A MINING CLAIM; ALSO WATER RIGHTS. A full mining claim, under the laws of the state of South Dakota, contains a fraction over twenty acres, or a strip of land 600 feet wide and 1,500 feet long. In locating a claim the first thing necessary is to make a discovery of some kind of valuable mineral-gold, silver, cinnabar, lead, zinc, etc. The next step is to post a notice at the point of discovery, giving name of claim, date of discovery, and stating the general course or direction of the ledge or lode as near as can be stated at that time; also the number of feet along the ledge and the number of feet claimed on each side of the discovery, which cannot in any event exceed 300 feet on either side of the center of discovery, 1,500 feet being the maximum that can be claimed along the length of the vein. After posting the notice of discovery the locater has sixty days in which to sink a discovery shaft, so as to determine more accurately the course or direction of his vein of ore. He must also, within sixty days, more accurately define the boundaries of his claim by placing eight substantial stakes-one at each corner and one In the middle of each end and side line. He must mark these stakes with the name of his claim on the side of the stake facing the said claim and properly designate each slake with reference to the corner side or end occupied by it. After this has been done he must then file in the office of the register of deeds of the county in which the claim is situated a location certificate. This location certificate must contain substantially the same statements as those contained in the notice posted at the point of discovery, with this, additional-that it must locate the claim with some natural object or permanent monument. During the year in which the claim has been located the locater has to properly locate it by sinking a shaft ten feet deep or more, sufficient to expose the ledge and properly staking the claim. After that he must do $100 worth of work each year or place improvements of that amount upon it until he obtains a patent from the government for it. The locater of a claim can begin application for a patent just so soon as he can show $500 worth of improvements upon tile ground. After the ground has been patented it is not necessary to do the annual assessment or development work upon it, but the ground so patented becomes subject to taxation. In case a person owns several claims lying contiguous and forming one group, the owner or owners may do development or assessment work on any one of the claims, provided it will tend to develop the whole group, but he must do on this one claim an amount of work which will equal $ico for each of the claims in said group. In locating placer ground the procedure is substantially the same, and in this manner many of the smaller parks in the mountains of the Black Hills have been acquired for agricultural purposes, the owners first locating them as placer claims, paying the government price, and, after complying with the provisions of the mining laws, occupying the land for farming purposes. In this way some of the most productive farms in South Dakota have been acquired. When application is made to the United States land office for patent the owner of placer ground is required to pay for the land which he claims at the rate of $2.50 an acre. On lode claims the owner must pay to the government $5 an acre. LOCATING WATER RIGHTS. In locating a water right the locater must post a notice at the point where the water is diverted from the stream. In this notice must be stated the number of miners' inches of water claimed and the purpose or purposes for which it is to be used. The owner must then proceed to appropriate the water by constructing a ditch or flume from the place of diversion to where it is to be used. A person can only appropriate so much water as he can use and no more, and a failure to use the water so claimed within a reasonable time will work to the forfeiture of his rights. SOME MINING TERMS IN COMMON USE. Any work toward taking out the ore more than is necessary for the purpose of development constitutes what is called stoping. The chambers from which the ore has been excavated are called the stopes, and these necessarily vary in size and position of the vein or ore body. Drifting is the act of following along with the course of the vein. Definitions of other mining terms are as follows: Adit-Open cut or tunnel on the vein. Amalgam-Gold or silver combined with mercury. Apex-The top or highest point of a vein. Auriferous-Any rock or sand bearing gold. Bedrock-Rock underlying placer mines. Blind Lode-Where there appears no outcrop to the vein. Breast-The face of a tunnel or drift. Breccia-Angular rocks cemented together. Cage-An elevator used in hoisting ore. Cap Rock-Rock overlying the ore or vein. Cobbin-Breaking ore for sorting. Contact-A junction of two kinds of rock, such as lime and porphyry. Contact Vein-A vein between two dissimilar rock masses. Country Rock-The rock on each side of a vein. Crosscut-A level driven across the course of a vein. Dip-The slope or pitch of a vein. Drift-Horizontal passage underground driven on or along the vein. Face-The end of a drift or tunnel. Fault-Displacement of a stratum or vein. Feeder-A small vein entering into a larger one. Float-Loose ore or rock separated from the original formation. Fissure Vein-A crack in the earth's crust containing mineral. Footwall-Layer of rock immediately beneath the vein. Free Milling-Ores that separate readily from the gangue by simple methods. Gash Vein-A vein wide at the top and closing at a short depth. Hanging Wall-The layer of a rock or wall overhanging a lode. Horse-A mass of rock between the branches of a vein. In Place-Not having been distributed from its original position. Level-A horizontal passage in a mine diverging from the shaft. Lode-A vein, thus a lode claim is a claim having in its boundaries a vein. This term is sometimes used to designate the mine itself. Mill-run-A test of the value of a given quantity of ore. Open-cut-An open surface working. Outcrop-The portion of a vein showing at the surface. Pyrites-Brittle cubes or iron sulphides. Strike-The extension of a lode in a horizontal direction. Stulls-A framework to support rubbish when stoping out ore. Seams and stringers are used interchangeably for narrow branches running off from the vein or lead. GENERAL REVIEW OF BLACK HILLS MINING. Various Formations and Character and Treatment of Ores. BY JESSE SIMMONS, M. E. (Portrait below.) H. N. Ross and W. T. McKay, who were with the Custer expedition of 1874, made the first authoritatively substantial discovery of gold in the Black Hills. On the 27th day of July of that year, when the party was camped near the site of the present town of Custer, they panned gravel from the bed of French creek, in which the yellow particles were found. The military party continued its journey through the Black Hills, making a hasty survey of the country, and on returning to civilization reported to the government. They had found gold at various places, but, of course, no attempt was made to operate the diggings. The next year, as a result of this preliminary inspection, a party of the United States Geological Survey, under the direction of Professors Newton and Jenney, and with military escort under command of General Custer, visited the Hills and made a most careful examination of the country. To-day their reports to the government are frequently quoted and given the deepest consideration. They found gold and other precious minerals at various points. It was realized that the country was more valuable to the United States as a mineral producing and civilized region than as an Indian reservation, as it then was, and negotiations were commenced with the Indians for the purpose of acquiring title to the section. But the stampede began; despite snows and cold, the pioneers, in the fall of 1875 and spring of 1876, rushed to the Hills from all quarters. Although they were compelled to brave the dangers incident to the zealous guarding of the country by the hostile Indians and the unlawful trespassing upon Indian reservation, punished by summary removal by the military authorities, thousands sought the gold fields of the new Eldorado. The government was obliged by its treaty with the Indians to protect the Black Hills from encroachments of whites, and escorted from the country nearly all of those who came to the country in 1875. But it was a tide that could not be stemmed, and, realizing that fact, the deportation of the pioneers was practically abandoned. The miners explored nearly every nook and corner of the Hills, finding gold in many gulches, but until the spring of 1876 Custer was looked upon as the mining metropolis of tile Black Hills, the commercial center and erstwhile capital of the country. But early in that spring the news was spread of wonderful gold discoveries in the Whitewood district, as it was then known; the depopulation of Custer took place in a night. The Mecca was the vicinity of the present cities of Deadwood and Lead. The claims were the richest yet discovered in the Hills, and during June and July thousands rushed to the spot. Placer mining was, of course, the first class of gold recovery attempted. It consisted in the washing of the gravel from the creek beds by water, the high specific gravity of the gold causing it to settle in the bottom of the troughs or sluice boxes, in riffles placed there. Crude though the processes employed were, fortunes were recovered during that summer. The Wheeler claim between Deadwood and Central City, on Deadwood gulch, produced $50,000. Others produced nearly as much. The first summer's work resulted in the recovery of gold to the amount of $1,200,000. Miles of ground along the creeks were staked, prospected and worked, and by the time winter closed in the excitement was practically at its height, with every available bit of land located. The next February, on the 28th of the month, the treaty between the Sioux and the government was signed and the natives relinquished their title to the country. The price paid to the aborigines was $4,500,000 (and other considerations). Federal law then became the authority instead of the vigilante party with its swift justice (?) of hanging or banishment. The wild towns of Deadwood and its neighbors were ruled by the strong arm of the law, and peace was not so ruthlessly broken as before, the Indians were driven away by the troops and mining resumed in the spring on a better basis. The production of 1877 amounted to $2,000,000. Geology teaches that the placer gold deposits are formed from the erosion of veins, the gold being stored mechanically in the creek beds. Knowing this, the prospector's attention was turned to the seeking of the veins whence had come the placer gold, and many claims were staked out in Blacktail, Bobtail, Gold Run and Sawpit gulches. THE HOMESTAKE DISCOVERED. Mose and Fred Manuel, brothers, and Jack Harney, discovered rich float quartz early in 1876, and when the snow allowed of the close inspection of the country they sought the vein whence had come the segregated pieces. On April 9, 1876, their search was rewarded by the finding of a rich vein that they named the Homestake. They did a little digging and discovered a piece of quartz weighing about 200 pounds that was the richest ever found at the mine, and the next day commenced to open up their ground in earnest. They located, also, other claims, the Old Abe, Terra and Father DeSmet. Eager capitalists bonded the Homestake for $40,000 and the Old Abe for $5,ooo, but did not buy. The Manuels continued developing the Homestake and Old Abe, finally, in the fall, building a road to Kirk and erecting a crude mill. Ore was hauled to the mill by ox teams and $5,000 was taken out during the winter. During the subsequent summer they sold their claims, the Homestake bringing $70,000, Old Abe $45,000, and Terra $35,000. [Photo - COMPRESSED AIR MOTOR HAULING 28 STEEL BOTTOM-DUMPING CARS, CONTAINING 4 TONS OF ORE EACH FROM ELLISON HOIST TO MILLS OF HOMESTAKE MINING COMPANY, OVER STEEL BRIDGE, 100 FEET HIGH.] THE FIRST STAMP MILL However, the first attempt to work the quartz deposits was made by M. E. Pinney, who built a mill on the Omega mine, near Terraville. The plant was hauled into the country from Colorado, and for a while paid handsomely. About the same time Capt. C. V. Gardner built a mill, calling his company the Black Hills Gold Mining Company. The ores worked were from; the conglomerate deposits, and though bonanzas for a time, the richest portions were worked out and the industry waned. Dozens of little mills were built during this period and the quartz miners were elated. EARLY PLACER CAMPS. Custer, the scene of the first gold discovery, was, during the year 1875 and early portion of 1876, the largest city of the Black Hills, and the gulches in the vicinity were energetically worked for their placer gold. French creek produced its quota of the precious metal, and many dry gulches, from which it was necessary to haul the gravel in wagons to water, were successfully worked. Hill City sprang up also. Palmer, Friday, Sunday, Newton and other gulches produced heavily. Spring creek, on the banks of which the town was built, yielded well. Rockerville, too, was a placer camp of renown. A flume and ditch some fourteen miles long were constructed to convey water from Spring creek to the "dry" diggings. In the Northern Hills, Iron creek, Sand creek, Nigger gulch, Mallory, Potato, Bear and other gulches, all in the western edge of the state, and partially in Wyoming, were worked to advantage. In fact, one of the biggest nuggets of record in the Black Hills was taken from Nigger gulch. It weighed $453. INDIANS MOLEST THE MINERS. During the first two eventful years, '75 and '76, the Indians were a constant source of annoyance and danger to the miners. They invaded the Hills, and, crawling up the high hills, shot at the men working in the bottoms of the gulches below. It was hardly safe to try and work a mine without having a man posted as sentry. Guns were kept handy and defenses provided in case it came to a fight at close quarters. In traveling across the plains from the nearest railroad points, some 250 miles, the Indians were especially dangerous. They would steal up on a camp at night, drive off the animals and massacre the members of the party. For many years the Hills lacked efficient transportation facilities. Sidney, on the Union Pacific, and Bismarck, on the Northern Pacific, were the nearest railroad points, and all supplies had to be hauled that distance. Ox teams hauled the freight, and passengers and mail came by stage coach. Even after the subjugation of the Indians, road agents, or highwaymen, molested the stage coaches, holding up the passengers and mail. The authorities finally exterminated them. and in 1886 the Fremont, Elkhorn & Missouri Valley railroad was built to Rapid City. It was extended to Deadwood in 1890, and followed shortly by the Burlington. The lack of cheap transportation for the heavy machinery needed in the mills was a burden hard to bear, but a good many thousand tons of freight were hauled to the Hills by the oxen. The first mill on the Homestake, built by the new owners, Haggin, Hearst and Tevis, was an eighty-stamp plant, and it cost $30,000 to have it transported to the mine from Cheyenne by ox teams. This is but an example of the almost prohibitive freight tariffs then existing. But notwithstanding these and other embarrassments mining prospered in the Black Hills during the early days. Of course, under the then existing conditions only the richer veins were worked in the majority of cases, and practically no effort was made to save other values than the free gold. The cost of shipping ore to the smelters at Omaha and elsewhere practically prohibited the treatment of stuff worth less than $100 per ton, so little was done in that line. The methods employed were crude and primitive. Nothing was known at that time of the many modifications and economies of mining and milling as to-day practiced. The cyanide process was locked in the bosom of the future. Matte smelting was not introduced until 1890, and so the production was greatly limited. But year by year the value of gold bullion annually sold has increased step by step, until in 1903 it reached the total of $7,229,000, proving the conquering by science of the difficulties that beset the early miner, heralding the introduction of matte smelting, the perfection of cyanidation and the approach of the day when the Black Hills shall stand alone and supreme as the greatest gold camp on earth. It is in the Black Hills to-day that ores that would be regarded as waste in other mining communities are treated at a profit by new methods. The Homestake mine itself is the greatest modern gold mine in many respects. In its mills are daily treated thousands of tons of ore that in other mining districts, and even in the Black Hills during the early days, would have been discarded as waste. Thus has mind conquered matter, thus has the scientific miner overcome the obstacles, thus have processes been adapted, altered to suit the different ores and adapted to surrounding circumstances to such good purpose that to-day mining in the Black Hills is conducted purely along lines similar to a common manufacturing business. Fortunes are not acquired in a day. Bonanza ores are the exception. The favorite toast of the late George Hearst, one of the most skillful mining operators of the world, "Here's to low-grade ore and plenty of it," has become the motto of the Black Hills. OCCURRENCE OF ORES. In order to understand the ore occurrences of the Black Hills a little of the geology of the region must be understood. In the first place, what is known as the Black Hills uplift is of itself an isolated mountain range, the primal rocks of which are the Algonkian slates, hornblendes and diorites, with heavy intrusions of eruptive granite, notably in Custer county, where they form Harney peak, the highest point in the Hills. These slates have a general vertical position, occasionally broken and twisted, with a course of northwest-southeast. Lying just above them in a horizontal position are beds of conglomerate, placers of ages gone by, formed from the erosion of the Algonkian veins. Immediately above the conglomerate are the Cambrian rocks, first 12 to 20 feet of quartzite, then 200 to 300 feet of shales and sandstones. Next above are the carboniferous measures, principally limestone, approximately 600 to 900 feet thick. These rocks (the Cambrian and carboniferous) are in the Northern Black Hills broken, twisted, contorted and folded by the action of intrusive eruptive dikes of porphyry, phonolite, trachyte, etc. Overlying these strata are the later sedimentary sandstones, shales, limes and gypsum beds, dipping gently away from the center of the Hills under the level prairies without. THE FISSURE LODES. In the oldest known geological rocks, the Algonkian, are found the fissure lodes of the Black Hills. These great veins are of varying widths. Some of them are only a few inches, while others are fully 500 feet wide. In nearly all cases they conform to the stratification of the enclosing slates, or, in other words, are parallel, both in dip and course, with the wall stratification. The date when these big veins will become worked out is not conceivable for ages to come. They extend vertically toward the center of the earth and at 1,200 feet show no loss in width in values from a hundred feet depth. But it is a well-known fact that the heat radiating from the center of the earth causes discomfort to the miners at depths of a mile or more, and that there is a limit of the efficiency of hoisting engines for bringing the ores to the surface. These two physical difficulties will, of course, one day limit operations on the veins in that direction, but since they are explored and proven along their course for more than forty miles, the pratical end cannot be foreseen. The greatest development on this class of veins is on what is termed the Homestake Belt, which is in itself over a mile in width- a dozen veins fifty to several hundred feet wide, separated by strata of slate. This belt is exposed by its outcrop and developments from Maitland on the north to Keystone on the south. It has a general course from Maitland of south 35° east. Its entire dimension, so far explored, is one great mass of low-grade ore, with here and there stringers within the veins of exceedingly rich material. Other vein systems of similar character exist in the Hills. One of them passes through Galena, east of the Homestake Belt, and will perhaps prove equally as important when as fully developed. Another is found near Welcome City, Wyoming, on the western side of the Hills. Another underlies the mines of Bald mountain, one vein a little over three hundred feet wide being opened in the Horseshoe mine, under the Cambrian ores. ORES OF THE CAMBRIAN MEASURE. Next to the Homestake the greatest producing mines of the Black Hills are operating on ores from the horizontal Cambrian beds. The first of these, geologically, is the conglomerate, which yielded so well in the early days. Exposures of immense beds of this ore are made at numerous points in the Hills, notably in Blacktail gulch, near Deadwood, and in the Nigger Hill district of western Lawrence county. In Blacktail gulch these ore exposures in the conglomerate show blankets twenty feet and upward in thickness and of good average values. The Phoenix, Esmeralda and Jupiter mills are built on mines of that class of ore. In the Northern Black Hills alone are found ores in the Cambrian quartzite, shales and sandstones. In all cases they are more or less intimately associated with the eruptive dikes of porphyry, etc., giving rise to the theory of their formation which has been universally accepted, namely, that accompanying these dikes as they were forced through the crust of the earth were mineral waters carrying gold and silver. The dikes formed outlets for the hot waters, and by chemical replacement ore was made of the soft porous Cambrian rocks, changing them to hard, close-grained gold and silver bearing materials. Then again at other points the great Algonkian fissures are overlain by beds of Cambrian ore. The coincidental occurrence of the two can hardly be explained by any theory save that the two were enriched at the same time, and by the same mineralizing waters from the earth's interior. Ores of the Cambrian are divided into four classes-quartzite, contact, shale and vertical. It is not in all cases that the quartzite itself is found to pay, although the Wasp No. 2 is a good exception to the rule. Here the quartzite assays $2 to $5 per ton, averaging about $3 in gold. The bed is approximately 18 feet thick, lies near the surface, is cheaply mined and treated in a mill conveniently situated. The best grade of ore in the Cambrian is found between the quartzite and the shales, sometimes with either a roof or floor of eruptive rock. These shoots of ore are of varying sizes. In the Golden Reward mines at Terry one shoot is explored over a mile in length from the northerly to the southerly end in that company's property, where it enters the Horseshoe territory; the shoot is 175 feet wide at the south end, and is really at this point a confluence of ten separate smaller shoots. It is from six to twenty feet thick, and 200 tons of ten-dollar ore are shipped from it daily to the company's cyanide mill at Deadwood. Higher up the mountains, both geologically and topographically, are found the shale ore. Immense beds, sometimes forty feet thick, are opened, producing ore to supply some of the largest cyanide mills in the Black Hills. The vertical ores of the Cambrian resemble very much, both in character and values, the contact ores of the same period. They are found filling fissures extending upward through the horizontal strata, and often penetrating the carboniferous rocks above. The ores of Carbonate Camp are notable examples of this class. Verticals here have been followed downward over four hundred feet. through limestone, sandstone and shale. Often these verticals lead to contact ore bodies on the quartzite, and this fact would indicate that when the shafts at Carbonate reach that point larger bodies will be found. Verticals are of varying widths, from a feather edge to several feet, widening out in places and pinching together in others. THE CARBONIFEROUS ORES. The first intimation that the Black Hills had that ore existed in the carboniferous rocks was when float was discovered at Carbonate. That was in the early eighties. In 1895 rich float ore was found at Ragged Top, and the camp at once became the center of a boom. The ore was in verticals, similar to Carbonate, and these were followed to various depths. Later (in 1000) great blankets of ore on the very tops of the hills attracted capital, with the result that two cyanide mills were built at Ragged Top for its treatment. Since their organization these two mines had paid over $100,000 in dividends to January 1, 1904. The ore is low grade, occurring in immense bodies, and promises to become of the utmost importance, since at least two more mills are to be built in the neighborhood within the year, and a substantial addition is planned for one of those already operating. Thus in all this variety of rock formations is gold found in paying quantities in the Black Hills. It is almost possible to truthfully state that every hill is a gold mine. Hardly a bit of rock that is found in the country will assay less than $l per ton, and from that on up. The day is surely coming, and at no great distant time, when $i ore will be handled at a profit. The special feature of the Black Hills is its large low-grade deposits-these have given it wealth at home and fame throughout the mining world. Systems of gold recovery are daily becoming more perfect and economical in their operation. As the cost of treatment lowers, so proportionately will increase the value of the mines. To-day it is resolved into a simple business proposition, combined with mining education necessary for the adaptation to various conditions, and to- morrow it will become even more sure and higher in favor. [Photo - CYANIDE MILLS OF THE IMPERIAL GOLD MINING COMPANY AT DEADWOOD.] OTHER MINERALS. SILVER. Attempts have been made at various times and places to work silver veins in the Black Hills. In the early days, when the white metal commanded a good price, much money was made from silver mining, but of late years not a great deal of interest has been manifested in this direction. Galena and Carbonate Camp were the two silver camps of the Black Hills. Galena, named after ores of that character, which were found in large quantities of high grade. The Sitting Bull and Richmond were two mines that produced heavily in silver, shipments being made principally to Omaha smelters, transportation and treatment precluding the handling of ore worth much less than $100 a ton. The ore was found in the Cambrian formation, lying in a bed dipping strongly from the horizontal. The two mines adjoined, and the owners worked the ores out right up to the boundaries. The result was litigation, bitter and uncompromising, lasting for twenty years, which has just been brought to a close. And to show the march of progress and improvements made by science, the owner, Mr. Henry Earle, now contemplates building a cyanide mill to handle the waste dump from the old mine! The dump contains probably half a million tons. Several carloads have been treated by the Imperial mill at Deadwood and show pay values. The run was about 250 tons and the Imperial mill showed a handsome profit after cost of transportation and treatment. At Carbonate Camp in the early eighties rich galena ore was found at the grass roots. Slight developments showed bonanza ore bodies, and several companies were formed to operate the mines. One company, the Iron Hill, built a smelter and pan-amalgamation mill, produced $736,000 and paid $165,250 in dividends. Speculation in the stock of the company wrought ruin, and a good mine to-day stands idle as the result of this folly. Other mines in the vicinity produced handsome sums, and the Black Hills is credited with having given to the world five millions of dollars in silver bullion. The only recorded attempt to work silver ores by cyanide in the Black Hills was made by Allen Brothers. Three years ago at Carbonate Camp, they erected a small plant to handle the tailings from the pan-amalgamation mill of the Iron Hill Company and worked during a portion of two summers. A photograph shows the result of one of their bullion melts-375 pounds of silver 925-1,000 fine. The ore treated was what is known as cerargerite (chloride of silver) or horn silver, the only ore of the white metal known to be amenable to cyanidation. And it is a queer feature that this mineral is not soluble in any acid or combination of acids, but is very readily dissolved by the cyanide solution. TIN. Tin in veins was first identified in the Black Hills in 1883, although in 1876 it was found in the placers of Bear Gulch and vicinity. The Etta mine, near Keystone, where the first tin was found in veins, was purchased by the Harney Peak Tin Mining, Milling & Manufacturing Company, and with it were amalgamated thousands of acres of land in the vicinity, as tin veins were found in large numbers once the attention of the prospectors was drawn to the mineral. Operations were for a few years conducted on a magnificent scale. Two immense tin mills were built, hundreds of men employed, sawmills built in nearly every gulch, dozens of hoisting plants erected, a sumptuous headquarters provided for the chief and his aides, properties were purchased at alleged fictitious prices, the managers pocketing the difference-all this at the expense of the English stockholders. The alleged gross frauds, malpractices and swindlings were discovered, and the affairs of the company put in the hands of a receiver. Now the property amounts to but a few hundred acres. The valueless ground has been dropped, the best secured by patent, much of the machinery sold off, and the affairs practically wound up. Now the question is, Will the company resume? Undoubtedly it owns large bodies of good paying ore, with mills to handle it, large quantities of timber, excellent streams of water, in fact, all the accessories, and could be made to pay. The Gertie Mining & Milling Company, near Hill City, and the Tinton Company, operating at Nigger Hill, Lawrence county, are to-day pushing active operations in tin mining. COPPER. Various properties have been worked for copper and good pay ore shipped from them. One of the first and largest copper mines found was the Blue Lead, near Sheridan, in Pennington county. This big vein can be traced for miles, and several carloads shipped by R. M. Maloney of Deadwood carried a little over six per cent of the red metal. Adjoining the Blue Lead the Dakota Calumet Company has erected a smelter, and is developing its mines now to a point sufficient to supply the same. On Spring Creek, the Central Black Hills Copper Company has erected a lixivation plant for treating its copper ores. West of Rochford the Black Hills Copper Company has sunk a shaft 300 feet to open copper veins. Not a great deal of development has been done on the copper veins in the past, but at present the industry seems to be taking on a new vigor. Good copper outcroppings are found in numerous parts of the Hills, but no steady producing mine is yet operating. [Photo - COKE OVENS OF THE CAMBRIA FUEL COMPANY AT CAMBRIA WYOMING] MICA. In the southern Hills mica deposits are quite extensive and productive. In 1879 the McMacken mine, near Custer, was located, and has since produced $200,000 worth of cut and scrap mica. This mine is known now as the Crown, and is the property of the Crown Mica Mining Company. Other mines, the Climax, New York, Peerless, Lost Bonanza, etc., contributed to the output. Black Hills mica is said to have especial qualities recommending it to users for electrical purposes. It has a high fusing point and non-conductivity. The scrap mica commands a low price, and sheet mica according to size, from ten censt to three dollars per pound. Especially large sheets are encountered in the Crown mine, one taking the prize at the World's Fair in Chicago. There are good opportunities for investment of capital in mica mining in this country, as veins are large, well distributed and carry high value. IRON. Good hematite is not abundant in the Black Hills, although the Poznansky mine, west of Rapid City, has produced ore running over 50 per cent. Over a hundred and fifty cars have been shipped from Nahant mines to smelters. This is bog iron. Deposits of hematite for commercially producing pig iron have not been found in the Black Hills, although with the building of the railroad along Rapid Creek, west to Mystic, some large low-grade deposits will be given rail transportation and may prove very valuable. Iron in all forms is more or less abundant in the Hills. Perhaps the most abundant form is pyrite, which occurs in nearly all the so-called free-milling ores in small quantities, and occasionally in almost solid veins by itself. When it occurs as last described a value is attached to it as a flux for the pyritic smelters, and for the manufacture of sulphuric acid. H. H. Francis of Custer is shipping pyritic ore daily to Chicago for transformation into sulphuric acid. It is a paying institution, and many other mines of like character will probably be worked in the future. There is a good opportunity for judicious investment in a sulphuric acid plant in the Black Hills. i [Photo - OPEN CUT OF WASP NO. 2-A MARVEL OF CHEAP MINING AND MILLING.] SPODUMENE. Probably 2,000 tons of spodumene have been mined from the Etta, near Keystone, the property being worked under lease from the Harney Peak Company. Hermann Reinbold & Co. of Omaha used a large part of the output. Spodumene contains percentages of lithia, from which the "lithia salts" of the druggist are made. The largest known specimen of spodumene in the world was found at the Etta; it was thirty feet in length and over two feet in diameter, having the appearance of a white log imbedded in the granite. TUNGSTEN. Wolframite and scheelite, the two ores of tungsten, are found in the Black Hills. Large shipments have been made from the mines of North Lead and Yellow Creek. For the ores carrying 60 per cent and upward, $3 per unit (per cent) is paid, thus bringing a good price for the ore. It was while prospecting for wolframite that Otto Grantz found his exceptionally rich ore on the Hidden Fortune. The Harrison, Reddy, Golden Crown and Wasp No. 2 are other producers. Some wolframite is found in the tin veins of the southern Hills. Tungsten is used in hardening steel for armor plate, and for giving cloth a bath which makes it inflammable. The latter use is steadily growing, and the demand for wolframite and scheelite great. The Black Hills wolframite carries gold in considerable quantities, and to date no attempt has been made to extract it before selling to the dealers, so there it is lost sight of. Samples from the Wasp No. 2 assay as much as $200 per ton in gold. So that Jack Gray is not far wrong when he says some of the battleships are armored with South Dakota gold. MISCELLANEOUS. Lepidolite is found in commercial quantities at the Etta mine. Its uses are the same as spodumene. Jamesonite, an ore of antimony, is found near Silver City and Rochford, Penningtou county. Custer and Pennington counties produce from various mines ores of bismuth, though not as yet in paying quantities. Cinnabar (oxide of mercury, or quicksilver) is found at the Poisoned Ox mine, west of Rapid City. It has not been opened in paying quantities. Pitchblende, the ore of the new wonder, radium, is found in Pennington county, near Pactola, and in small quantities near Bald Mountain ; also near Rochford. Marble and onyx, of beautiful tints, and taking a fine polish, are found at numerous points in the outer Hills, and near Custer in the granite rocks. Commercial production has been made. Graphite has been identified in several mines west of Rochford, including the Copper Cliff. The mineral is used for manufacturing stove polish, gray-black paint, etc. Small production has been made, and the future will probably see large paying mines opened. Lead is found in nearly every milling camp in the Hills in varying quantities. Silver City, Galena and Carbonate have been the largest producers. Beautiful crystals of pyromorphyte (phosphate of lead) are found at Carbonate Camp. Arsenic, in the form of mispickel, or pyrite, is found in many of the veins of free-milling ore. The Ida Florence mine, near Keystone, contains large deposits. Platinum has been discovered in small quantities in the placers .of the southern Black Hills. Nickel and cobalt, associated with other minerals, are known to exist at numerous points in the southern Hills and the Clover Leaf mine at Roubaix, but have, however, received only small attention at the hands of the prospector. Fuller's earth is found in the foothills in large deposits.. Shipments have been made, and the grade shown to be excellent. It is used in clarifying lard, tallow and more particularly cotton seed oil. It is worth about $15 per ton. The world's supply at present comes largely from England and Florida. Gypsum, from which stucco is manufactured, is found in large quantities in the Black Hills. Several factories are operating steadily, including the Pettigrew at Spearfish and the Hot Springs Plaster Company at Hot Springs. TREATMENT OF THE ORES. Gold-bearing rocks of the Black Hills are of two classes, namely, free- milling and refractory. Roughly, refractory ores are those which will not give up their precious contents by amalgamation, and free-milling the opposite class. Free-milling ores were the first to which attention was directed in the Black Hills, and after nearly thirty years the process has been reduced to a science. Briefly, the process is as follows: The ore as it comes from the mine passes through crushers, where it is reduced in size to pass a one and one-half to two-inch ring. From the bins beneath the crusher it passes to feeders which automatically drop it under the stamps. These stamps weigh half a ton and work in mortars of iron. Water is fed into the mortar with the ore, and as the material is crushed it is carried through a screen or screens at the side of the mortar and onto long flat plates of silver-plated copper. These plates are amalgamated with mercury, the material having an affinity as well for gold, and as the ore, now in a fine state of division, flows over the plates the gold is caught. The plates are scraped, the resulting ball of amalgam of gold and mercury retorted, and the gold recovered in the native state. Amalgamated plates are also placed within the mortars to collect the gold particles too coarse to pass the screens. Retorting is a process of distillation, the amalgam being placed in an iron vessel with a top tightly fastened on, from which a pipe leads away. A fire is built under the retort, and the heat evaporates the mercury*. The fumes passing through the pipe are condensed and the mercury gathered in a pan or other suitable vessel. The pipe is kept cool by running water surrounding it in a larger pipe. The fire is made hotter and hotter and finally the last trace of mercury is expelled. The mercury is purified by the process and is used again in the mill. [Photo - NEAR DEADWOOD-ORE TRAIN LEAVING THE MONTEZUMA AND THE WHIZZER MINES FOR THE SMELTERS.] This is the true free-milling process, and is employed in only one instance in the Hills. At the Clover Leaf mine 93 per cent of the values in the ore are extracted in this manner. At other properties, which are called free- milling, adaptations are made of the process, the ore as it flows off the plates being caught and subjected to concentration, with eventual smelting of the concentrates, and perhaps after concentration, to a treatment by the cyanide process. At some mines the concentration is omitted, and the tailings from the plates conveyed directly to the cyanide mill. In other mills the ore is crushed in a cyanide solution, is subjected to that process first and amalgamated afterward. Refractory ores, or those in which the gold does not occur in the native state, and are therefore not amenable to amalgamation, are treated by two processes in the Black Hills, smelting and cyanidation. For many years the refractory or siliceous ores from the Cambrian deposits proved a puzzle to the metallurgists. High assays could be obtained from mines at Bald Mountain, but no gold could be found in the pan, or could be saved in the stamp mills. Efforts were made by various parties to perfect a process, but all failed until 1890, when matte smelting was introduced. Matte smelting solved a great problem for the Black Hills. It was the first introduction into America, and was made by Dr. F. R. Carpenter, then dean of the State School of Mines, and who resigned to take charge of the Deadwood & Delaware smelters (now the Golden Reward). Of course at the first starting of the plant many difficulties had to be overcome, and there were times when it seemed it would be impossible to continue. But perseverance won, and the process has been adopted as a scientific, commercial success. In principle it is as follows: Ore, limestone (to form a fusible mixture), coke (to furnish heat) and iron pyrite are fed into a large brick and iron furnace. Air forced into the furnace under a slight pressure gives a draft, and the burning coke furnishes heat to melt this mixture. The iron pyrite, having an affinity for the gold, collects it as well as the silver, and on account of its superior specific gravity settles to the bottom of the furnace. The ash from the coke, the limestone, and valueless portions of the ores form a slag, which is drawn off through holes and removed to the dump. The matte, or iron pyrite containing the gold and silver, is drawn into molds through holes below the slag, "tap holes," and is shipped elsewhere for refining. Virtually this process consists of concentrating the values of about ten tons of ore into one ton of matte, which is refined at a low cost. The Deadwood & Delaware sold to the Golden Reward Company some years ago, and that company now has a matte smelter with a capacity of 500 tons per day. The National Smelting Company at Rapid City has a similar plant of 200 tons capacity. CYANIDATION. Although cyanidation is a comparatively new metallurgical process, it has been widely used in the Black Hills, and is responsible for the marvelous gain in production and favor of the country in the last few years. It has made commercially possible the treatment of untold millions of dollars' worth of the low-grade refractory ores that could not be handled by smelting, owing to the cost of treatment. Smelting costs from seven to ten dollars per ton, while cyanidation costs twenty-five cents to a dollar and a half a ton. Twenty-five cents covers the cost of treatment at the Homestake cyanide mills, where, the already crushed ore is received from the stamp mills. The higher figure includes the cost of crushing as practiced at some of the Black Hills plants. Cyanide mills are of three classes, namely, wet crushing, dry crushing and tailings mills. In the wet crushing mills the ore is crushed by the regulation stamps the same as in the free-milling process, only, instead of water, cyanide solution is used. The dry crushing mills pulverize the ores in rolls, or heavy iron machines operating on the principle of a clothes wringer. The tailings mills treat ores after other processes have been used to extract a portion of the values, as, for instance, at Lead City, where the Homestake treats the ore by cyanidation after amalgamation. In wet crushing the process is substantially as follows: The ore, which is crushed by stamps in a solution of cyanide (either cyanide of potassium or sodium being used), is transferred to large separators, of which there are many patterns, but all using the one principle. Here the coarser portion of the ore is separated from the finer, since the two cannot be treated in the same vat. This is accomplished by allowing the solution and ore to flow into the top of an inverted cone, equipped with a pipe at the bottom, and a small trough around the upper edge. Specific gravity causes the coarse portion to settle, and it is drawn off through the pipe. The fine, almost impalpable, powder floating in the water, known as slimes, overflows into the trough, from where it is carried to the vats for treatment. In some cases the sands are passed through another separator, but in all events pass to a vat of greater diameter than depth, usually 4 to 8 to i, or, in other words, from 20 to 40 feet in diameter to 5 feet deep. This vat is provided with a trough around the upper edges similar to the cone, and here again the overflowing slimes are carried to their vats. Since there are used in the stamps from six to nine tons of solution to one ton of ore, it will be seen that there is an abundance of solution for this separation. The vat finally fills up with sand to within a few inches of the top, and solution is added. This solution is changed at intervals for a few days, from two to four days usually sufficing to extract the values, and water, which serves to wash the remaining cyanide solution from the ore, added in its stead. The cyanide solution, having dissolved the gold, is conveyed to the precipitation room, where the gold is extracted from it. Slimes, since they would pack firmly in the vat and not allow of percolation, are treated separately. The process consists of filling vats (of greater depth than diameter in the ratio of about 3 to l) with the mixture of slimes and solution. The slimes gradually settle to the bottom and the clear liquid is drawn off the top. More solution is added, the mixture agitated, in some cases by transferring to another vat, and the process repeated. Finally, as in the sand process, water is added and the charge washed. The solutions go to the precipitation room. The precipitation rooms are of different characters in different mills. As a rule zinc shaving precipitation is followed. In this case the shavings of zinc, fine threads of the metal cut on lathes, are placed in receptacles through which the solution passes. The zinc has the property of disassociating the gold from the cyanide solution, and the precious metal is precipitated to the bottom in the form of a black powder. This powder is carefully collected, usually twice a month, treated with sulphuric acid to dissolve the zinc, dried at a low heat, melted with various fluxes to remove the impurities, and sold to the United States. Precipitation systems are different, some mills using wooden and some steel boxes, and a great many using halves of whiskey barrels. In all the principle is the same. The receptacle is divided into two compartments, one smaller than the other. In the bottom of the large compartment a coarse screen is placed an inch or so above the floor. The gold bearing solution enters this compartment by means of a smaller one, from the bottom, the partition extending down to within an inch of the floor. The solution, flowing out of the large compartment, enters another similar receptacle. After the gold has been precipitated the solution has lost a small portion of its strength, perhaps one- fifth, but otherwise is ready for use again. The cyanide thus consumed amounts to approximately one-halt pound per ton of ore treated, costing about 12% cents. The process is almost entirely automatic, requiring the following employes to operate a 300-ton mill: Superintendent, assayer and assistant, engineer, fireman, crusher man, solution man, stamp tender, man cutting zinc shavings, roustabout, and man emptying vats by flushing with water through holes in the bottom. Dry-crushing cyanidation employs the following process: Crushing ore to two inches diameter, pulverizing in rolls to particles from 1-16 to % inch in diameter, transferring to vats and treatment same as sands in wet crushing. There are practically no slimes made by this process, hence no separators, special treatment, etc., are necessary. The advantage gained is perhaps partially offset by the increased cost of pulverizing, since the wear on the crushing face of the rolls is great. In some cases furnaces are installed to dry the ore before pulverizing, thus adding another item of cost.