Chapter 18
A corollary to the last is that a deep but small pit similar to the so-called "caches" in the lodge sites may have been dug here and the bones thrown in. There is no indication whatever of a lodge site or any other form of habitation at this point, but I have found such pits in the vicinity of Indian houses, though not just on their site. The deepest one I have ever found was 10½ feet and less than 6 feet in diameter. There would be no difficulty in digging into this loose material as far as an excavator cared to go, until he had reached a depth at which he could no longer get the loosened earth to the surface of the ground. As mentioned above, a pit south of Omaha had a depth of 13 feet, or only 1 foot less than is claimed for this--or rather for the greatest depth at which it is claimed fragments of bone were found.
The objection made to this theory is that the earth thrown out of the hole was unmixed, presenting throughout the appearance and consistency of loess as it occurs where exposed in ravines or on slopes in the vicinity. It is contended that if any previous excavation had been made here and filled up afterwards the mixed earth would be easily distinguished from that which was not removed, and that the line of demarcation would be easily discernible.
As a rule, this is true; but when dry loose earth of homogeneous consistency is thrown out of a pit and then thrown in again without becoming mixed with any other it is sometimes impossible to distinguish it at a later excavation. This is especially true of earth free from vegetable matter, as ordinary sand; or composed largely of vegetable mold, as the soil in overflow lands which have built up mainly from floods carrying uniform soil sediment. The line of demarcation between the dug and the undug earth in such conditions may become indistinguishable except when a vertical face is made which shall show a clear section of both in contact.
It is now too late to learn anything about the matter from the site itself. So many persons have been digging that it would be impossible to know when the limit is reached between the original excavation--assuming it to have been made--when the bodies were interred, and that resulting from the modern researches. The question of age hinges upon the appearance of the earth in which the bones were found; and the only way in which we can now learn anything about it is to trench across the hill at some of the other burial places, in the hope of finding bones at a similar level, and determining from the conditions in which these are found how they came there.
It is beyond question that any soil, humus, or other discolored matter thrown into an excavation with ordinary soil or subsoil will be apparent for an indefinite time afterwards. But on some of these high points and ridges there is even now not a trace of soil. Frost and wind have worn bare spots where nothing grows or has grown for a long time. As this region was a prairie devoid of even brush when the whites settled here, it is evident that such slight protection as grass or weeds afford would not be sufficient to hold the earth in place in winter, and when the ground is once swept bare such humble forms of growth may not get a foothold in future. Anyone who has studied surface geology knows these facts.
So at present the whole question of the age of these bones resolves itself into a statement of one party that they were found in undisturbed loess, as reported; and of the inability of another party to show that there may have been an error of observation or a mistaken interpretation.
There need be no such doubt in regard to the age of the mounds or the lodge sites. It would not take many centuries for mounds upon these sharp, exposed ridges to be entirely washed away, in spite of the fact that the fine loess is almost impermeable. Rain may not reduce them to an appreciable extent, but frost and wind will gradually wear them down. As to the lodge sites, their similarity to modern Indian houses is so pronounced that we are fully justified in attributing them to the same degree of culture as that of the Indians of a century ago. The only point of difference is that the latter dwellings have not such deep excavations, but the incursion of war-like tribes, or the restlessness that impels a primitive community to be frequently on the move, seems a simpler explanation of the difference than to suppose that identical types are separated by a great period of time.
Three points must be taken into consideration in fixing a definite age for these remains:
1. The relics found in and around the lodge sites, except for the markings on some of the pottery, are in no wise different from those picked up on the sites of villages which were occupied when Lewis and Clark came through here.
2. Fairly solid bones of animals, and occasionally of humans, are found in the bottoms of the lodge sites, even where these are damp most of the year. In the pits, where such remains are preserved by ashes, this would not mean much; but where they are found in clayey earth it is evident that "thousands of years" is a meaningless term to apply to them.
3. Persons who claim these "thousands of years" for pretty much everything they find in the ground must explain why it is that while the bones and implements of these assumed "ancients" are found in such quantities and in such good preservation, those of later Indians should have entirely disappeared.
The only tenable theory of age is the amount of accumulation in the depressions of the lodge sites. Above the clay which formed the roof, and is next to the floor now, is a depth of material sometimes (it is said) as much as 20 or even 22 inches of mingled silt, decayed vegetation, and soil from the surrounding wall. It is used as an argument of age that as these sites are on hilltops where there can be no inwash, this depth must indicate a very remote period for their construction. But a large amount of the earth thrown out into the surrounding ring or wall will find its way back into the depression. The water will stand in them a good part of the year, and the soil remain damp even in prolonged drought; vegetation is thus more luxuriant than on the outside, and its decay will fill up rather rapidly. In addition, much sand blows from the prairies as well as from the bottom lands, and whatever finds its way into the pit will stay there; it will not blow away again as it would in open ground. The weeds, also, will catch and retain much of this dust which would pass over a dry surface. Consequently the allowance of an inch in a century, which is the most that advocates of great age will allow for accumulation, is much too small.
The topography of the region was essentially the same when these remains were constructed as it is now. The hills and valleys were as they now exist; the erosion has been very slight as compared with what has taken place since the loess was brought above the water, to which it owes its origin. This statement is fully proven by the position of the mounds and lodge sites. Any estimate of age must be only a guess at the best, but it is a safe guess that no earthwork, mound, lodge site, or human bone along this part of the Missouri River has been here as long as 10 centuries.
IV. ABORIGINAL HOUSE MOUNDS
The small, low, flattened mounds of the lower Mississippi Valley are a problem to archeologists. They have been studied principally near the Mississippi River, in Arkansas and Missouri, and for many years it was thought that in the latter State they are confined entirely to the southeastern portion. Recently they have been found much farther to the north and the west than they were supposed to exist.
A group, rather limited as to number and to the area covered, is at the head of a narrow valley trending northward from Granite Mountain in Iron County.
"Near Iron Mountain, in St. François County, more than 500 of these small mounds, arranged in parallel rows following the direction of the watercourses, were counted within a radius of 3 miles."[1]
The next group known north of this is on the right bank of Plattin Creek in Jefferson County, about 12 miles from the Mississippi.
"A group of some 50 similar mounds is situated on the right bank of the Meramec, about 6 miles above its mouth, in Jefferson County."[2]
The most northern group so far observed is near Ferguson in St. Louis County, Missouri, where 46 are located on a narrow ridge which has the same general elevation as the table-land. The ridge extends around the head of a ravine, and the mounds are placed along its crest or on the gentle slopes near the top. There are 10 or 12 at the southern edge of Ferguson, on an overflow bottom bordering a small creek.
Toward the west from the swamp region a small group is in a broad valley near Alton in Oregon County, which borders on Arkansas. They are scattered along a gentle slope which has a little stream at the foot.
In Dent County four groups are known. One is on the infirmary farm south of the town of Salem. Most of these are but slightly changed from their natural condition. Another group is 6 miles east of Salem. These also are largely intact. A third is on the road from Salem to Short Bend. The fourth is at the edge of Salem, on the Rolla road.
"On the high plateau of Dallas County, north of the Niangua ... within an area smaller than 10 square miles, 860 were counted."[3]
Three groups are well marked in Phelps County. A mile east of Rolla they begin at the line of the Frisco Railway and extend southward in a shallow valley or "draw." Some are on the overflow flat bordering the little stream, but most of them are on the slopes to either side.
South of Dillon they extend for a mile in a slight depression.
Beginning at the Soldier's Home in St. James, the largest number yet found out of the swamp region lie for 2½ miles on both sides of a small creek running eastward north of the Frisco Railway. These reach from low land subject to overflow to an elevation of fully 50 feet up the hillsides.
Several groups occur in Pulaski County. Four miles southwest of Big Piney post office, near the site of what is known as "The Ranch House," is a little wet-weather stream along both banks of which are probably a hundred of these structures. Farther up this stream are two other groups, the three including a distance of about 4 miles in length between their outer limits. West of these and south of Bloodland is a fourth group belonging with these.
In the level bottom between Big Piney River and the branch flowing from the Miller Spring 2 miles from Big Piney post office a number of these mounds formerly existed; and on the opposite side of the Big Piney, in an extensive bottom, were many of them. All these have now disappeared under cultivation.
On the outer bend of the Devil's Elbow, on Big Piney 3 miles above its mouth, some of these mounds stood. They are described as being from 2 to 3 feet high; the number was not stated, but there is not room for many in the narrow strip where they were located.
In the extreme western part of Morgan County, at Stover, is a group scattered over an area at least half a mile across in any direction. The distance between the mounds varies from 25 to 150 feet. They are mostly on gentle slopes, though some are on the crest of the ridges. Many of these are well preserved, some of them having never been under cultivation.
In Osage County there are more than a hundred at the eastern edge of Rich Fountain. They are in low flat ground which is muddy or even boggy in wet weather.
It will be noticed that all those from Alton westward and north-westward are in line with the route from southeastern Missouri to the plains of Kansas and Nebraska.
Practically, however, the northern limit of this type, in great numbers, is in St. François County, near Farmington. From here they extend almost continuously into Louisiana and Texas.
In nearly every part of southern Missouri east of the Iron Mountain Railway they occur in closely connected groups, reaching sometimes for miles except where the continuity is broken by a slough or other unfavorable condition. They are found everywhere--on high, well-drained levels; on sloping ground, sometimes so steep that it may well be called a hillside; in low "crawfish land"; in swamps where, in the driest weather, even after a prolonged drought, they can be reached only by wading through water or muck. The last, however, may have been more easily accessible when built, their present condition being due to the general subsidence of this region during the earthquake period of 1811. The existing sloughs and sluggish bayous are the widenings and extensions of streams which at the time these mounds were constructed were no doubt bordered by banks above ordinary overflow and readily reached by canoes. Manifestly the country was well populated, and therefore presumably practically timberless; consequently the flood water would rapidly pass away and the streams not be choked by drift and other débris as is the case at present.
Various theories, most of them advanced by persons who are but slightly, if at all, familiar with the country, have been propounded to account for mounds of this character. Their vast number has led some writers to believe that they can not be artificial but must be due to natural phenomena; as, for instance, that these, as indeed all mounds, were piled up by floods, Noachic, glacial, or local; or that they result from the industry and energy of burrowing animals, such as foxes, badgers, ground hogs, rabbits, prairie dogs, gophers, chipmunks, or even ants; the character of the assumed flood or the species of the supposed burrower depending to some extent upon locality, but principally upon the theorizer's insufficient knowledge of animal industry or of the action of torrential waters. Others are convinced they are formed by the piling up of earth around a bush, clump of grass, stone, or other object acting as a nucleus about which wind-borne material may accumulate--overlooking the fact that clay, gravel, or gumbo soil can not be carried by wind, and that lighter soil or sand will form elongated instead of circular masses. Another supposition is that they are due to stream erosion; flood waters washing away the soil between them and thus leaving the earth composing the mound in its original position. The same objection applies to this as to the wind-blown theory, namely, that we can not imagine water acting with such mathematical regularity and intelligent discrimination, especially upon slopes which lie at all sorts of angles with the trend of the current.
Persons who recognize their human origin have suggested that they were erected as stands for hunters, from which they could detect game at a greater distance, or could take better aim as the animal passed; or perhaps as camping places while waiting; but in many places more than half the area of the ground over several acres is occupied by such piles of earth, promiscuously distributed. This implies more hunters than animals.
For a long time it was supposed that they were burial mounds, like so many such structures found over the country; but this idea has been dispelled by the failure to discover in them any evidences of such purpose; no human bones nor any of the artificial objects commonly placed with the dead have ever been found in them unless under such conditions as to show their presence was accidental.
Two very plausible theories have found general acceptance: That they were the sites of dwellings, placed on them to be out of the mud in wet weather; and that they were in the nature of garden beds, thus elevated for growing any food products which needed a comparatively dry soil, or might be injured by temporary accumulation of water from excessive rainfall.
But they were not "residence mounds" or "house sites" in the sense that they furnished a base or foundation for structures which were used as dwellings; for there has never been found on their surface or in the earth immediately around them any of the débris invariably accompanying Indian huts or houses, such as fireplaces, ash beds, burned rocks, broken implements, or fragments of bones and pottery. These considerations also interfere with a full acceptance of the hypothesis that they are remains of houses built of wood and covered with earth. It is true that such evidence is very frequently found in other localities; but to establish the fact that they were residence sites, refuse of this kind should be found wherever the mounds occur.
J.B. Thoburn arrived at this conclusion from the resemblance of some of them in their outlines to the grass-covered houses of the Pawnees; and it is believed that this tribe in its migration from the south followed approximately the route along which these small elevations are found. When the Pawnees--assuming they were the builders--passed on westward they could not procure timbers of sufficient strength to hold up the earth, so they used light frames and covered them with grass.
Bushnell arrived earlier at the same conclusion. He says, concerning a few mounds of this character in Forest Park, St. Louis: "In the case of the seven mounds on the elevated grounds, the finding of potsherds, pieces of chipped chert, and the indication of fire, all on what appeared to have been the original surface, would point strongly to their having been the remains or ruins of earth-covered lodges." He gives citations from early explorers in support of this theory, and adds, "But in other mounds these indications did not occur."[4]
Such an explanation finds support in the vast number of these structures. In building, the aborigines naturally chose the sort of timber which was soft and light, consequently easy to cut and to handle, such as willow or cottonwood. This soon decays. But no matter what variety of wood was utilized, not many years would be required, under the conditions supposed, to weaken its fiber until it could no longer uphold the weight of earth on the roof, and a new house must be erected. Several such renewals would be needed in the course of a century; so that the ruins of an ordinary village might create the impression that a large settlement had existed on its site.
The explanation of "agricultural use" is probably correct in some instances, for frequently the mounds are made of earth gathered up around their base, and so not only would be of value in a wet season, but would afford a much greater depth of fertile soil for sustenance of plants. In some localities modern farmers find that on such mounds crops are much better than on the low spaces between them. On the other hand, a majority of the small mounds in the lower counties of southeastern Missouri are composed either of the hard, reddish, sandy clay which forms the subsoil of the land above overflow; or of the tough, waxy, black "gumbo" of the swampy or flat lowlands. In either case they are almost invariably sterile, so that in a cultivated field the position of a mound is easily determined even from a considerable distance by the feebler growth on its surface. Moreover, in many places, hundreds of them occurring within an area of a few square miles are built on clay lowlands where crawfish abound, within a few rods of sandy, well-drained ridges whose soil is never muddy more than a few hours after the hardest rain, and produces as fine corn and wheat as can be raised in any part of the State.
In short, no matter what suggestion has been offered as to their purpose or uses, objections to it can be brought and sustained. It is not improbable that, in the end, it will be found the difficulty lies in trying to place in a hard and fast category a variety of structures which are similar in appearance but which were intended for various uses. With more comprehensive study, it may be that a classification is possible which will interpret what is now obscure. Instead of uniformity, there was probably great diversity of motives, ideas, and beliefs which led to the building of these as well as of other mounds; and when the key is once obtained the explanation which will account for one may be very different from that which as clearly accounts for another.
A few of these mounds have been explored by the writer, but no discoveries were made upon which can be based a definite statement as to their probable purpose.
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NEW MADRID COUNTY
On the farm of A.B. Hunter, 7 miles north of New Madrid, more than 60 of these mounds, irregularly placed, extend for half a mile along the west bank of St. John's Bayou, the extreme width of the group being about 200 yards. The largest mound, standing on the edge of the terrace, was 6 feet high and 75 feet across. On the original surface, over a small area at the central part, were decayed fragments of human bones; so this was probably erected as a tumulus. The others were much smaller; from a foot to 3 feet high, and 30 to 50 feet in diameter. Six of these, varying in size from the largest to the smallest, were thoroughly excavated within the original margin and down to the undisturbed earth beneath them. No artificial object was found in any of them except here and there a fragment of pottery or a small amount of ashes or a piece of charcoal, not intentionally deposited but gathered up and carried in with the earth in the course of construction. There were no distinct fire-beds or ash piles at the bottom, or in any part of the mound; nor were there any holes in which posts may have stood.
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ST. FRANÇOIS COUNTY
Nearly 2 miles south of Farmington, on Quesnel's land, are about 30 very small, low mounds, none more than 18 inches high or 25 feet across. They are on the general level, some of them on a gentle slope, of the first upland above the St. François River and a mile from that stream at its nearest point.
Half a mile to the south of these is a group of similar mounds on the farm of Isaac Hopkins, on a gently sloping hillside, and from 30 to 40 feet above the level of the overflow bottom land. One of these has been gradually worn away by the encroachment of a gully until more than half of it has disappeared. While the curvature of its surface is very apparent, and the remnant of its margin sufficiently distinct to show its regularity of outline, careful inspection of the face formed by the erosion fails to reveal any trace of stratification, or line of demarcation between the bottom of the mound and the original surface. There is precisely the same uniformity of change from the grass roots to the underlying gravelly soil that exists in the exposed bank at any point to either side of the mound. Mr. Hopkins, desirous of knowing what might be in the mound, or why it was built, has noted the appearance of the earth from the time the gully reached its margin. At no time has its appearance differed in the least from what it presents now.
On the river bottom portion of Mr. Hopkins's farm, and on the adjoining Goings and Townshend farms to the southward, are many mounds lying along both sides of the Belmont division of the Iron Mountain Railway. Fully 100 were observed within a distance of a mile; and they are said to continue both up and down the river. They are all above flood stage, except in time of extreme high water. They range from a foot to 3 feet high, and from 20 to 40 feet across; but some of them have been lowered and broadened by cultivation. They are of the same earth as the ground around them. Mr. Hopkins says crops are much better on the mounds than on the area between them. This is no doubt due to the greater amount of productive soil in the one case, and to the excess of moisture in the other; the railway embankment impeding drainage in the lower part. Oak trees 4 feet in diameter grew on the mounds before they were cleared off.