Читать книгу The Collected Works - Henry Rowe Schoolcraft - Страница 58
No. IV.
ОглавлениеRemarks on the Lead Mine Country on the Upper Mississippi.
[Addressed to the Editors of the New-York Mirror.]
Gentlemen:
Time admonishes me of my promise to furnish you some account of my journey from Galena to Fort Winnebago. But I confess, that time has taken away none of those features which make me regard it as a task. Other objects have occupied so much of my thoughts, that the subject has lost some of its vividness, and I shall be obliged to confine myself more exclusively to my notes than I had intended. This will be particularly true in speaking of geological facts. Geographical features impress themselves strongly on the mind. The shape of a mountain is not easily forgotten, and its relation to contiguous waters and woods is recollected after the lapse of many years. The succession of plains, streams, and settlements is likewise retained in the memory, while the peculiar plains, the soils overlaying them, and all the variety of their mineral and organic contents, require to be perpetuated by specimens and by notes, which impose neither a slight nor a momentary labor.
Limited sketches of this kind are furthermore liable to be misconceived. Prominent external objects can only be brought to mind, and these often reveal but an imperfect notion of the pervading character of strata, and still less knowledge of their mineral contents. Haste takes away many opportunities of observation; and scanty or inconvenient means of transporting hand specimens, often deprive us of the requisite data. Indeed, I should be loath to describe the few facts I am about to communicate, had you not personally visited and examined the great carboniferous and sandstone formation on the Mississippi and Wisconsin, and thus got the knowledge of their features. The parallelism which is apparent in these rocks, by the pinnacles which have been left standing on high—the wasting effects of time in scooping out valleys and filling up declivities—and the dark and castle-looking character of the cherty limestone bluffs, as viewed from the water, while the shadows of evening are deepening around, are suited to make vivid impressions. And these broken and denuded cliffs offer the most favorable points for making geological observations. There are no places inland where the streams have cut so deep. On gaining the height of land, the strata are found to be covered with so heavy a deposite of soil, that it is difficult to glean much that can be relied on respecting the interior structure.
The angle formed by the junction of the Wisconsin with the Mississippi is a sombre line of weather-beaten rocks. Gliding along the current, at the base of these rocks, the idea of a “hill country,” of no very productive character, is naturally impressed upon the observer. And this impression came down, probably, from the days of Marquette, who was the first European, that we read of, who descended the Wisconsin, and thus became the true discoverer of the Mississippi. The fact that it yielded lead ore, bits of which were occasionally brought in by the natives, was in accordance with this opinion; and aided, it may be supposed, in keeping out of view the real character of the country. I know not how else to account for the light which has suddenly burst upon us from this bank of the Mississippi, and which has at once proved it to be as valuable for the purposes of agriculture as for those of mining, and as sylvan in its appearance as if it were not fringed, as it were, with rocks, and lying at a great elevation above the water. This elevation is so considerable as to permit a lively descent in the streams, forming numerous mill-seats. The surface of the country is not, however, broken, but may be compared to the heavy and lazy-rolling waves of the sea after a tempest. These wave-like plains are often destitute of trees, except a few scattering ones, but present to the eye an almost boundless field of native herbage. Groves of oak sometimes diversify those native meadows, or cover the ridges which bound them. Very rarely does any rock appear above the surface. The highest elevations, the Platte mounds, and the Blue mound, are covered with soil and with trees. Numerous brooks of limpid water traverse the plains, and find their way into either the Wisconsin, Rock River, or the Mississippi. The common deer is still in possession of its favorite haunts; and the traveller is very often startled by flocks of the prairie-hen rising up in his path. The surface soil is a rich, black alluvion; it yields abundant crops of corn, and, so far as they have been tried, all the cereal gramina. I have never, either in the west or out of the west, seen a richer soil, or more stately fields of corn and oats, than upon one of the plateaux of the Blue mound.
Such is the country which appears to be richer in ores of lead than any other mineral district in the world—which yielded forty millions of pounds in seven years—produced a single lump of ore of two thousand cubic feet—and appears adequate to supply almost any amount of this article that the demands of commerce require.
The river of Galena rises in the mineral plains of Iowa county, in that part of the North-Western Territory which is attached, for the purposes of temporary government, to Michigan. It is made up of clear and permanent springs, and has a descent which affords a very valuable water-power. This has been particularly remarked at the curve called Millseat-bend. No change in its general course, which is south-west, is I believe apparent after it enters the north-west angle of the state of Illinois. The town of Galena, the capital of the mining country, occupies a somewhat precipitous semicircular bend, on the right (or north) bank of the river, six or seven miles from its entrance into the Mississippi. Backwater, from the latter, gives the stream itself the appearance, as it bears the name, of a “river,” and admits steamboat navigation thus far. It is a rapid brook immediately above the town, and of no further value for the purpose of navigation. Lead is brought in from the smelting furnaces, on heavy ox-teams, capable of carrying several tons at a load. I do not know that water has been, or that it cannot be made subservient in the transportation of this article from the mines. The streams themselves are numerous and permanent, although they are small, and it would require the aid of so many of these, on any projected route, that it is to be feared the supply of water would be inadequate. To remedy this deficiency, the Wisconsin itself might be relied on. Could the waters of this river be conducted in a canal along its valley from the portage to the bend at Arena, they might, from this point, be deflected in a direct line to Galena? This route would cut the mine district centrally, and afford the upper tributaries of the Pekatolika and Fever River as feeders. Such a communication would open the way to a northern market, and merchandise might be supplied by the way of Green Bay, when the low state of water in the Mississippi prevents the ascent of boats. It would, at all times, obviate the tedious voyage, which goods ordered from the Atlantic cities have to perform through the straits of Florida and Gulf of Mexico. A railroad could be laid upon this route with equal, perhaps superior advantages. These things may seem too much like making arrangements for the next generation. But we cannot fix bounds to the efforts of our spreading population, and spirit of enterprise. Nor, after what we have seen in the way of internal improvement, in our own day and generation, should we deem any thing too hard to be accomplished.
I set out from Galena in a light wagon, drawn by two horses, about ten o’clock in the morning (August 17th), accompanied by Mr. B. It had rained the night and morning of the day previous, which rendered the streets and roads quite muddy. A marly soil, easily penetrated by rain, was, however, as susceptible to the influence of the sun, and in a much shorter period than would be imagined, the surface became dry. Although a heavy and continued shower had thoroughly drenched the ground, and covered it with superfluous water, but very little effects of it were to be seen at this time. We ascended into the open plain country, which appears in every direction around the town, and directed our course to Gratiot’s Grove. In this distance, which on our programme of the route, was put down at fifteen miles, a lively idea of the formation and character of the country is given. The eye is feasted with the boundlessness of its range. Grass and flowers spread before and beside the traveller, and on looking back, they fill up the vista behind him. He soon finds himself in the midst of a sylvan scene. Groves fringe the tops of the most distant elevations, and clusters of trees—more rarely, open forests—are occasionally presented. The trees appear to be almost exclusively of the species of white oak and roughbark hickory. Among the flowers, the plant called rosin-weed attracts attention by its gigantic stature, and it is accompanied, as certainly as substance by shadow, by the wild indigo, two plants which were afterward detected of less luxuriant growth on Fox River. The roads are in their natural condition, they are excellent, except for a few yards where streams are crossed. At such places there is a plunge into soft, black muck, and it requires all the powers of a horse harnessed to a wagon to emerge from the stream.
On reaching Gratiot’s Grove, I handed letters of introduction to Mr. H. and B. Gratiot. These gentlemen appear to be extensively engaged in smelting. They conducted me to see the ore prepared for smelting in the log furnace; and also the preparation of such parts of it for the ash furnace as do not undergo complete fusion in the first process. The ash furnace is a very simple kind of air furnace, with a grate so arranged as to throw a reverberating flame upon the hearth where the prepared ore is laid. It is built against a declivity, and charged by throwing the materials to be operated upon, down the flue. A silicious flux is used; and the scoria is tapped and suffered to flow out, from the side of the furnace, before drawing off the melted lead. The latter is received in an excavation made in the earth, from which it is ladled out into iron moulds. The whole process is conducted in the open air, with sometimes a slight shed. The lead ore is piled in cribs of logs, which are roofed. Hammers, ladles, a kind of tongs, and some other iron tools are required. The simplicity of the process, the absence of external show in buildings, and the direct and ready application of the means to the end, are remarkable, as pleasing characteristics about the smelting establishment.
The ore used is the common sulphuret, with a foliated, glittering and cubical fracture. It occurs with scarcely any adhering gangue. Cubical masses of it are found, at some of the diggings, which are studded over with minute crystals of calcareous spar. These crystals, when examined, have the form of the dog-tooth spar. This broad, square-shaped, and square-broken mineral, is taken from east and west leads, is most easy to smelt, and yields the greatest per centum of lead. It is estimated to produce fifty per cent. from the log furnace, and about sixteen more when treated with a flux in the ash furnace.
Miners classify their ore from its position in the mine. Ore from east and west leads, is raised from clay diggings, although these diggings may be pursued under the first stratum of rock. Ore from north and south leads, is termed “sheet minerals,” and is usually taken from rock diggings. The vein or sheet stands perpendicularly in the fissure, and is usually struck in sinking from six to ten feet. The sheet varies in thickness from six or eight inches, in the broadest part, to not more than one. The great mass found at “Irish diggings,” was of this kind.
I observed among the piles of ore at Gratiot’s, the combination of zinc with lead ore, which is denominated dry bone. It is cast by as unproductive. Mr. B. Gratiot also showed me pieces of the common ore which had undergone desulphuration in the log furnace. Its natural splendor is increased by this process, so as to have the appearance of highly burnished steel. He also presented me some uniform masses of lead, recrystallized from a metallic state, under the hearth of the ash furnace. The tendency to rectangular structure in these delicate and fragile masses is very remarkable. Crystallization appears to have taken place under circumstances which opposed the production of a complete and perfect cube or parallelogram, although there are innumerable rectangles of each geometric form.
In the drive from Gratiot’s to Willow Springs, we saw a succession of the same objects that had formed the prominent features of the landscape from Galena. The platte mounds, which had appeared on our left all the morning, continued visible until we entered the grove that embraces the site of the springs. Little mounds of red earth frequently appeared above the grass, to testify to the labors of miners along this part of the route. In taking a hasty survey of some of the numerous excavations of Irish diggings, I observed among the rubbish small flat masses of a yellowish white amorphous mineral substance of great weight. I have not had time to submit it to any tests. It appears too heavy and compact for the earthy yellow oxide of lead. I should not be disappointed to find it an oxide of zinc. No rock stratum protrudes from the ground in this part of the country. The consolidated masses thrown up from the diggings, appear to be silicated limestone, often friable, and not crystalline. Galena is found in open fissures in this rock.
We reached the springs in the dusk of the evening, and found good accommodations at Ray’s. Distance from Galena thirty miles.
The rain fell copiously during the night, and on the morning (eighteenth) gave no signs of a speedy cessation. Those who travel ought often, however, to call to mind the remark of Xenophon, that “pleasure is the result of toil,” and not permit slight impediments to arrest them, particularly when they have definite points to make. We set forward in a moderate rain, but in less than an hour had the pleasure to perceive signs of it mitigating, and before nine o’clock it was quite clear. We stopped a short time at Bracken’s furnace. Mr. Bracken gave me specimens of organic remains, in the condition of earthy calcareous carbonates, procured on a neighbouring ridge. He described the locality as being plentiful in casts and impressions such as he exhibited, which appeared to have been removed from the surface of a shelly limestone. At Rock-branch diggings, I found masses of calcareous spar thrown from the pits. The surface appears to have been much explored for lead in this vicinity. I stopped to examine Vanmater’s lead. It had been a productive one, and affords a fair example of what are called east and west leads. I observed a compass standing on the line of the lead, and asked Mr. V. whether much reliance was to be placed upon the certainty of striking the lead by the aid of this instrument. He said that it was much relied on. That the course of the leads was definite. The present one varied from a due east and west line but nine minutes, and the lead had been followed without much difficulty. The position of the ore was about forty feet below the surface. Of this depth about thirty-six feet consisted of the surface rock and its earthy covering. A vein of marly clay, enveloping the ore, was then penetrated. A series of pits had been sunk on the course of it, and the earth and ore in the interstices removed, and drawn to the surface by a windlass and bucket. Besides the ore, masses of iron pyrites had been thrown out, connected with galena. In stooping to detach some pieces from one of these masses, I placed my feet on the verge of an abandoned pit, around which weeds and bushes had grown. My face was, however, averted from the danger, but on beholding it, I was made sensible that the least deviation from a proper balance would have pitched me into it. It was forty feet deep. The danger I had just escaped fell to the lot of Mr. B.’s dog, who, probably, deceived by the growth of bushes, fell in. Whether killed or not, it was impossible to tell, and we were obliged to leave the poor animal under a promise of Mr. V., that he would cause a windlass to be removed to the pit, to ascertain his fate.
At eleven o’clock we reached Mineral Point, the seat of justice of Iowa county. I delivered an introductory letter to Mr. Ansley, who had made a discovery of copper ore in the vicinity, and through his politeness, visited the locality. The discovery was made in sinking pits in search of lead ore. Small pieces of green carbonate of copper were found on striking the rock, which is apparently silico-calcareous, and of a very friable structure. From one of the excavations, detached masses of the sulphuret, blue and green mingled, were raised. These masses are enveloped with ochery clay.
In riding out on horseback to see this locality, I passed over the ridge of land which first received the appellation of “Mineral Point.” No digging was observed in process, but the heaps of red marly clay, the vigorous growth of shrubbery around them, and the number of open or partially filled pits, remain to attest the labour which was formerly devoted in the search for lead. And this search is said to have been amply rewarded. The track of discovery is conspicuously marked by these excavations, which often extend, in a direct line, on the cardinal points, as far as the eye can reach. Everywhere the marly clay formation appears to have been relied on for the ore, and much of it certainly appears to be in situ in it. It bears no traces of attrition; and its occurrence in regular leads, forbids the supposition of its being an oceanic arrangement of mineral detritus. At Vanmater’s, the metalliferous clay marl is overlaid by a grayish sedimentary limestone. Different is the geological situation of what is denominated gravel ore, of which I noticed piles, on the route from Gratiot’s. This bears evident marks of attrition, and appears to have been uniformly taken from diluvial earth.
On returning to the village from this excursion, I found Mr. B. ready to proceed, and we lost no time in making the next point in our proposed route. A drive of five miles brought us to the residence of Colonel Dodge, whose zeal and enterprise in opening this portion of our western country for settlement, give him claims to be looked up to as a public benefactor. I here met the superintendent of the mines (Captain Legate), and after spending some time in conversation on the resources and prospects of the country, and partaking of the hospitalities politely offered by Colonel D. and his intelligent family, we pursued our way. The village of Dodgeville lies at the distance of four miles. Soon after passing through it some part of our tackle gave way, in crossing a gully, and I improved the opportunity of the delay to visit the adjacent diggings, which are extensive. The ore is found as at other mines, in regular leads, and not scattered about promiscuously in the red marl. Masses of brown oxide of iron were more common here than I had noticed them elsewhere. Among the rubbish of the diggings, fragments of hornstone occur. They appear to be, most commonly, portions of nodules, which exhibit, on being fractured, various discolorings.
Night overtook us before we entered Porter’s Grove, which is also the seat of mining and smelting operations. We are indebted to the hospitality of Mr. M., of whom my companion was an acquaintance, for opening his door to us, at an advanced hour of the evening. Distance from Willow Springs, twenty-five miles.
There is no repose for a traveller. We retired to rest at a late hour, and rose at an early one. The morning (19th) was hazy, and we set forward while the dew was heavy on the grass. Our route still lay through a prairie country. The growth of native grass, bent down with dew, nearly covered the road, so that our horses’ legs were continually bathed. The rising sun was a very cheerful sight, but as our road lay up a long ascent, we soon felt its wilting effects. Nine miles of such driving, with not a single grove to shelter us, brought us to Mr. Brigham’s, at the foot of the Blue Mound, being the last house in the direction to Fort Winnebago. The distance from Galena is sixty-four miles, and this area embraces the present field of mining operations. In rapidly passing over it, mines, furnaces, dwellinghouses, mining villages, enclosed fields, upland prairies (an almost continued prairie), groves, springs, and brooks, have formed the prominent features of the landscape. The impulse to the settlement of the country was first given by its mineral wealth; and it brought here, as it were by magic, an enterprising and active population. It is evident that a far greater amount of labor was a few years ago engaged in mining operations; but the intrinsic value of the lands has operated to detain the present population, which may be considered as permanent. The lands are beautifully disposed, well watered, well drained by natural streams, and easily brought into cultivation. Crops have everywhere repaid the labors of the farmer; and, thus far, the agricultural produce of the country has borne a fair price. The country appears to afford every facility for raising cattle, horses, and hogs. Mining, the cardinal interest heretofore, has not ceased in the degree that might be inferred from the depression of the lead market; and it will be pursued, with increased activity, whenever the purposes of commerce call for it. In the present situation of the country, there appear to be two objects essential to the lasting welfare of the settlements:—first, a title to their lands from Congress; second, a northern market for the products of their mines and farms. To these, a third requisite may be considered auxiliary, namely, the establishment of the seat of territorial government at some point west of Lake Michigan, where its powers may be more readily exercised, and the reciprocal obligations of governor and people more vividly felt.
Mr. Brigham, in whom I was happy to recognise an esteemed friend, conducted us over his valuable plantation. He gave me a mass of a white, heavy metallic substance, taken as an accompanying mineral, from a lead of Galena, which he has recently discovered in a cave. Without instituting any examination of it but such as its external characters disclose, it may be deemed a native carbonate of lead. The mass from which it was broken weighed ninety or one hundred pounds. And its occurrence, at the lead, was not alone.
From the Blue Mound to Fort Winnebago is an estimated distance of fifty-six miles. The country is, however, entirely in a state of nature. The trace is rather obscure; but, with a knowledge of the general geography and face of the country, there is no difficulty in proceeding with a light wagon, or even a loaded team, as the Indian practice of firing the prairies every fall has relieved the surface from underbrush and fallen timber. After driving a few miles, we encountered two Winnebagoes on horseback, the forward rider having a white man in tie behind him. The latter informed us that his name was H., that he had come out to Twelve-mile Creek, for the purpose of locating himself there, and was in pursuit of a hired man, who had gone off, with some articles of his property, the night previous. With this relation, and a boshu38 for the natives, with whom we had no means of conversing, we continued our way, without further incident, to Duck Creek, a distance of ten miles. We here struck the path, which is one of the boundary lines, in the recent purchase from the Winnebagoes. It is a deeply marked horse path, cutting quite through the prairie sod, and so much used by the natives as to prevent grass from growing on it; in this respect, it is as well-defined a landmark as “blazed tree,” or “saddle.” The surveyor appointed to run out the lines, had placed mile-posts on the route, but the Winnebagoes, with a prejudice against the practice which is natural, pulled up many, and defaced others. When we had gone ten miles further, we began to see the glittering of water through the trees, and we soon found ourselves on the margin of a clear lake. I heard no name for this handsome sheet of water. It is one of the four lakes, which are connected with each other by a stream, and have their outlet into Rock River, through a tributary called the Guskihaw. We drove through the margin of it, where the shores were sandy, and innumerable small unio shells were driven up. Most of these small species appeared to be helices. Standing tent-poles, and other remains of Indian encampments, appeared at this place. A rock stratum, dark and weather-beaten, apparently sandstone, jutted out into the lake. A little farther, we passed to the left of an abandoned village. By casting our eyes across the lake, we observed the new position which had been selected and occupied by the Winnebagoes. We often assign wrong motives, when we undertake to reason for the Indian race; but, in the present instance, we may presume, that their removal was influenced by too near a position to the boundary path.
We drove to the second brook, beyond the lake, and encamped.
Comfort in an encampment depends very much upon getting a good fire. In this we totally failed last night, owing to our having but a small piece of spunk, which ignited and burned out without inflaming our kindling materials. The atmosphere was damp, but not sufficiently cooled to quiet the ever-busy musquito. Mr. B. deemed it a hardship that he could not boil the kettle, so as to have the addition of tea to our cold repast. I reminded him that there was a bright moon, and that it did not rain; and that, for myself, I had fared so decidedly worse, on former occasions, that I was quite contented with the light of the moon and a dry blanket. By raising up and putting a fork under the wagon tongue, and spreading our tent-cloth over it, I found the means of insulating ourselves from the insect hordes, but it was not until I had pitched my musquito net within it that we found repose.
On awaking in the morning (20th), we found H., who had passed us the day before in company with the Winnebagoes, lying under the wagon. He had returned from pursuing the fugitive, and had overtaken us, after twelve o’clock at night. He complained of being cold. We admitted him into the wagon, and drove on to reach his camp at Twelve-mile Creek. In crossing what he denominated Seven-mile Prairie, I observed on our right a prominent wall of rock, surmounted with image-stones. The rock itself consisted of sandstone. Elongated water-worn masses of stone had been set up, so as to resemble, at a distance, the figures of men. The allusion had been strengthened by some rude paints. This had been the serious or the sportive work of Indians. It is not to be inferred hence, that the Winnebagoes are idolaters. But there is a strong tendency to idolatry in the minds of the North American Indians. They do not bow before a carved image, shaped like Dagon or Juggernaut; but they rely upon their guardian spirits, or personal manitos, for aid in exigencies, and impute to the skins of animals, which are preserved with religious care, the power of gods. Their medicine institution is also a gross and bold system of semi-deification connected with magic, witchcraft, and necromancy. Their jossakeeds are impostors and jugglers of the grossest stamp. Their wabenos address Satan directly for power; and their metais, who appear to be least idolatrous, rely more upon the invisible agency of spirits and magic influence, than upon the physical properties of the medicines they exhibit.
On reaching Twelve-mile Creek, we found a yoke of steers of H., in a pen, which had been tied there two days and nights without water. He evinced, however, an obliging disposition, and, after refreshing ourselves and our horses, we left him to complete the labours of a “local habitation.” The intermediate route to Fort Winnebago afforded few objects of either physical or mental interest. The upland soil, which had become decidedly thinner and more arenaceous, after reaching the lake, appears to increase in sterility on approaching the Wisconsin. And the occurrence of lost rocks (primitive boulders), as Mr. B. happily termed them, which are first observed after passing the Blue Mound, becomes more frequent in this portion of the country, denoting our approach to the borders of the north-western primitive formation. This formation, we have now reason to conclude, extends in an angle, so far south as to embrace a part of Fox River, above Apukwa Lake.
Anticipated difficulties always appear magnified. This we verified in crossing Duck Creek, near its entrance into the Wisconsin. We found the adjoining bog nearly dry, and drove through the stream without the water entering into the body of the wagon. It here commenced raining. Having but four miles to make, and that a level prairie, we pushed on. But the rain increased, and poured down steadily and incessantly till near sunset. In the midst of this rain-storm we reached the fort, about one o’clock, and crossed over to the elevated ground occupied by the Indian Department, where my sojourn, while awaiting the expedition, was rendered as comfortable as the cordial greeting and kind attention of Mr. Kinzie, the agent, and his intelligent family could make it.
A recapitulation of the distances from Galena makes the route as follows, viz. Gratiot’s Grove, fifteen miles; Willow Springs, fifteen; Mineral Point, seven; Dodgeville, nine; Porter’s Grove, nine; Blue Mound, nine; Duck Creek, ten; Lake, ten; Twelve-mile Creek, twenty-four; Crossing of Duck Creek, eight; and Fort Winnebago, four; total, one hundred and twenty miles.
ERRATA.
Page 12, line 5. For Koginogumoc read Kaginogumoc.
“ 12, “ 12. For Courtonelle read Courtorielle.
“ 25, “ 4. For Feebyains read Jeebyains.
“ 27, “ 16. For troncard read broncard.
“ 28, “ 2. For and read at.
“ 36, “ 16. For Saskatchawino read Saskatchawine.
“ 41, “ 28. For Goulle read Gueule.
“ 44, “ 3 of Note. For t read not.
“ 60, “ 24. For these read there is.
“ 64, “ 34. For Ocant read Ocaut.
“ 66, “ 35. Do. Do.
“ 66, “ 18. For Jah read Tah.
“ 77, “ 7. For Guella read Gueule.
“ 81, “ 8. For broiled read boiled.
“ 96, “ 5. For separated read separately.
“ 103, “ 32. For and read or, and for country read county.
“ 106, “ 19. For Colamba migratons read Colomba migratoris.
“ 106, Note. For asmadonta read alasmadonta.
“ 115, “ 24. For Pipisagi read Tipisagi.