Part 39

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. Francois 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."

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."

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."

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 21/2 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. Francois 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 debris 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 debris 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."

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.