“‘Lewis and Clarke reported seeing Indian mounds 1000 miles above the confluence of the Mississippi and Missouri, but this report is not verified.’ So says Mr. John D. Baldwin, A. M., in his work entitled ‘Ancient America.’
“I now and here propose to contribute my mite toward the verification of the statement of Lewis and Clarke.
“The few men whom duty or wild inclination have from time to time brought into this, for the most part, uninhabited region of treeless prairie, have all known of the existence of thousands of artificial mounds. What was in them they knew not, and but two or three, to my knowledge, have ever been opened. On August 16, 1872, I opened one on the high table-lands that spread out on both sides of a little stream called the James. The point is about 47° north latitude, and 98° 38´ longitude west from Greenwich. It is within three miles of the line of the North Pacific Railroad. The mound is circular in form, 30⁸⁄₁₀ feet in its shorter, and 35³⁄₁₀ feet in its longer diameter, and five feet high. I opened four trenches, three feet wide, from the outer edge, meeting in the centre, forming a cross when finished. I then excavated the entire mound from the centre outward, until there was nothing more to find. For results I had several two-bushel bags full of bones, eight skulls, many pieces of skulls too small to be of value (there must have been at least twenty-five bodies buried there), a rough-hewn stone ten inches high and five and a half inches in diameter, in shape resembling closely a conical shell, a cutting half an inch deep around the centre. (This was evidently tied with thongs to a stout handle, and used in pulverizing their maize.) A portion of a shell necklace, two flints, two heads of beaver, and some bones of animals unknown, and a large quantity of bivalves, much like the clam (Mya oblongata) of our Atlantic coast, but thicker, and the interior surface much more pearly.
“The mounds and their contents are apparently of great antiquity. They are, in every case, on the very highest point in their immediate neighborhood, and perfectly drained. The climate is excessively dry; so dry that the James River is entirely dry at a point about 500 feet above the contemplated railroad-bridge across the river. Notwithstanding this, many of the bones crumbled into white dust on being brought to the air, like those found in Herculaneum and Pompeii, and it was absolutely impossible to get out a single one in anything like perfection. Around and over these bodies stones and sticks were placed, doubtless to preserve the remains from the coyote and the fox. The wood could be rubbed into fine yellow-brown dust between the thumb and forefinger. Any trace of excavation around the mound for dirt to heap it with had been entirely obliterated. The upright position of the skulls also indicated that the bodies were buried in a sitting posture. The leg-bones, however, lay lower and horizontal.
“The number of mounds indicates a denser population than ever has been known here, or than the natural resources of this region can now support by the chase. At the same time the number of dry lakes scattered all over would indicate that at some remote period the country may have been a better one than now, and supported a larger population.”
“We broke the surface on the north-east slope of the mound about ten or twelve feet from the opening on the west side made in 1874. The earth was frozen to a depth of about three and a half feet. Five or six inches below the surface we came upon a layer of shells one or two inches in thickness, which sloped downward toward the south-east, reaching a depth of two feet or rather more below the surface, and extending for a distance of ten or twelve feet. Between the surface and this first layer of shells a number of small fragments of human bones were found scattered through the soil. Under this shell layer was a stratum of earth of from twelve to fifteen inches in thickness, resting on a second layer of shells, from three to four inches in thickness. Both shell layers sloped downward nearly parallel with each other.
“Below the second shell layer the earth was of the nature of a light mould, darker in color than the earth above and thickly interspersed with fragments of human bones. These circumstances arrested my attention and caused me to proceed from this time on with the greatest caution. At a depth of about fifteen inches under the lowest part of the shell layer exposed in this excavation—the shell stratum at this point being five or six inches thick—the inscribed slates were found. The slate is the same as that usually found overlying coal beds in this vicinity, and is such as is frequently seen cropping out from the hill-sides or in isolated slabs in the beds of streams. Both plates lay close together on the hard undisturbed clay bottom of the mound.
“The engraved side of the smaller tablet was upward, and also that side of the larger one presenting the heavenly bodies, hieroglyphics, etc. The larger plate being partially divided by natural cleavage, its upper layer was unfortunately broken in two by a slight stroke of the spade. The two plates were closely encircled by a single row of weathered limestones. These stones are irregular in shape, but almost of the same size, their dimensions being about three by three by seven or eight inches, and the diameter of the circle about two feet.
“In the immediate vicinity were found a number of fragments of human bones, one being a portion of a skull saturated with carbonate of copper. A small piece of copper was found; also many fragments of slate and a piece of bone artificially wrought.”
Also see Proceedings of the Davenport Academy of Natural Sciences for Account of the Discovery of Inscribed Tablets, by Rev. J. Gass, with A Description by Dr. R. J. Farquharson. Davenport, Iowa, July, 1877. Cuts and views.