No place in the world, situated so far from the ocean, can at all compare with St. Louis for commercial advantages. It is so situated with regard to the surrounding country, as to become the key to its commerce, and the storehouse of its wealth; and if the whole western region be surveyed with a geographical eye, it must rest with unequalled interest on that peninsula of land formed by the junction of the Missouri with the Mississippi--a point occupied by the town of St. Louis. Standing near the confluence of two such mighty streams, an almost immeasurable extent of back country must flow to it with its produce, and be supplied from it with merchandise. The main branch of the Missouri is navigable two thousand five hundred miles, and the most inconsiderable of its tributary streams will vie with the largest rivers of the Atlantic States. The Mississippi, on the other hand, is navigable without interruption for one thousand miles above St. Louis. Its affluents, the De Corbeau, Iowa, Wisconsin, St. Pierre, Rock river, Salt river, and Desmoines, are all streams of the first magnitude, and navigable for many hundred miles. The Illinois is navigable three hundred miles; and when the communication between it and the lakes, and between the Mississippi and lake Superior, and the lake of the Woods--between the Missouri and the Columbia valley--shall be effected; communications not only pointed out, but, in some instances, almost completed by nature; what a chain of connected navigation shall we behold! And by looking upon the map, we shall find St. Louis the focus where all these streams are destined to be discharged--the point where all this vast commerce must centre, and where the wealth flowing from these prolific sources must pre-eminently crown her the queen of the west.
My attention was called to two large mounds, on the western bank of the Mississippi, a short distance above St. Louis. I have no hesitation in expressing the opinion that they are geological, and not artificial. Indian bodies have been buried in their sides, precisely as they are often buried by the natives in other elevated grounds, for which they have a preference. But the mounds themselves consist of sand, boulders, pebbles, and other drift materials, such as are common to undisturbed positions in the Mississippi valley generally.