Ancient Monuments of the Mississippi Valley / Smithsonian Contributions to Knowledge, Vol. I.

by E. G. Squier; E. H. Davis

p139

CHAPTER VI. EARTHWORKS—THE MOUNDS.

Fig. 27.—Group illustrating the forms of the mounds.

In connection more or less intimate with the various earthworks already described, are the Tumuli or MOUNDS. Together, these two classes of remains constitute a single system of works, and are the monuments of the same people. And while the enclosures impress us with the number and power of the nations which built them, and enlighten us as to the amount of military knowledge and skill which they possessed, as well as, in some degree, in respect to the nature of their superstitions,—the mounds and their contents, as disclosed by the mattock and the spade, serve to reflect light more particularly upon their customs and the condition of the arts among them. Within these mounds we must look for the only authentic remains of their builders. They are the principal depositories of ancient art; they cover the bones of the distinguished dead of remote ages; and hide from the profane gaze of invading races the altars of the ancient people.

A simple heap of earth or stones seems to have been the first monument which suggested itself to man; the pyramid, the arch, and the obelisk are evidences of a more advanced state. But rude as are these primitive memorials, they have been but little impaired by time, while other more imposing structures have sunk into shapeless ruins. When covered with forests, and their surfaces interlaced with the roots of trees and bushes, or when protected by turf, the humble mound bids defiance to the elements which throw down the temple and crumble the marble into dust. We therefore find them, little changed from their original proportions, side by side with the ruins of those proud edifices which mark the advanced, as the former do the primitive state of the people who built them. They are scattered over p140 India; they dot the steppes of Siberia and the vast region north of the Black Sea; they line the shores of the Bosphorus and Mediterranean; they are found in old Scandinavia, and are singularly numerous in the British islands. In America, they prevail from the great lakes of the north, through the valley of the Mississippi, and the seats of semi-civilization in Mexico, Central America, and Peru, even to the waters of the La Plata on the south. We find them also on the shores of the Pacific ocean, near the mouth of the Columbia river, and on the Colorado of California. With the character of those abroad we have little, at present, to do, except perhaps to note some of the more striking features which they exhibit in common with those of our own valley.

Allusion has already been made to the number and dimensions of the mounds of the West. To say that they are innumerable in the ordinary use of the term would be no exaggeration. They may literally be numbered by thousands and tens of thousands. In form, as observed in a preceding chapter, they are generally simple cones, frequently truncated and sometimes terraced. They are also elliptical, pear-shaped, or of a square pyramidal form,—in the last case always truncated, and most usually having one or more graded ascents to their summits. These varieties are partially illustrated in the cut at the head of this chapter, and will be amply exhibited in the pages which follow. No doubt can be entertained that their forms were, in great part, determined by the purposes for which they were designed, and may therefore be of use to us in ascertaining their character. Thus, if any were designed to serve as the sites of temples, or as “high places” for the performance of religious rites and ceremonies, it is evident they would be constructed with special reference to these objects.

In common with the enclosures, the mounds are for the most part composed of earth, though stone mounds are by no means rare. They are sometimes composed entirely of clay, while the soil all around them, for a long distance, is gravel or loam. The object of this may perhaps be found in the fact that mounds composed of such materials better resist the action of the elements, and preserve their form. There is certainly no difference in their position or contents which would justify the supposition that any peculiar dependence existed between the material composing the mound and the purposes to which it was devoted. Whether any significance may attach to the predominance of stone, in some of the mounds, is a question difficult to answer. It occasionally happens that a mound of stone occurs in the midst of a group composed of earth. Such was the case with one which formerly stood within the limits of Chillicothe. As a general rule, however, the mound is composed of material found upon the spot or taken from pits near by; and stone mounds oftenest occur where, from the hardness of the soil or the abundance of stones, it would be easiest to construct the tumulus of the latter material.

In respect to the position of the mounds, it may be said that those of Ohio occur mostly within or near enclosures; sometimes in groups, but oftener detached and isolated, and seldom with any degree of regularity in respect to each other. Such is believed to be the case generally throughout the entire valley of the Mississippi. A section of the Ohio valley, however, embraced between the mouths of the Guyandotte and Scioto rivers, an extent of sixty miles, which was p141 examined with special reference to this point, exhibited no works of magnitude in the form of enclosures; yet there was an abundance of mounds, though chiefly of small dimensions. Occasional groups of fifteen or twenty were noticed, sometimes occurring in lines, as if placed with design; a circumstance easily accounted for by the nature of the ground, which is here broken into long, low swells, or narrow ridges, with marshy intervals between them,—the mounds occupying the summits of the ridges.