And now, from this spot, I may be allowed to take a hasty, retrospective glance at the great Western Country. It stretches from the Gulf of Mexico to the northern limits of the United States; and from the Alleghany, to the Rocky mountains—a distance of three thousand miles; showing a broad surface of earth, equal in extent to the Atlantic ocean itself. Between these bold and primitive barriers, a country is exhibited, every where bearing the marks of a secondary formation. The valleys, bluffs and hills—the regular lamina of stone, strata of marine shells,—and, indeed, all the physical aspects of the country, wear the appearance of once having been the bed of a vast lake, or an inland sea.
From this circumstance of its recent formation, and the large quantities of decomposed lime stone mixed with the soil, result another attribute of this valley—its character of uncommon fertility. It is not indeed every where alike fertile. There are here, as else where, infinite varieties of soil, from the richest alluvions, to the most sterile flint knobs—from the impervious cane brakes, to the sandy pine hills. There are, too, towards the Rocky mountains, large tracts that have a surface of sterile sands, or covered only with a scanty vegetation of weeds and coarse grass. But of the country in general, the most cursory observer must have remarked, that, compared with lands in other regions apparently of the same character, these show marks of singular fertility. The most ordinary oak lands, will bring successive crops of Indian corn and wheat, without manuring, and with but little care of cultivation. The pine lands, which appear so sterile to the eye, have in many places, produced good crops for years, without the aid of manure.
There is another remarkable trait in the soil of this valley—its power to support vegetation under the severest drought. It is a fact so notorious that it has become proverbial, that if there be moisture enough to make the corn germinate and come up, there will be a good crop, if no rain fall until harvest. The eastern emigrant witnesses with astonishment, the steady advance of his crop to vigorous maturity, under a pressure of drought, and a cloudless ardor of sun, that must have parched up the fields, and destroyed vegetation at the East.
The Alleghany mountains, which form the eastern boundary of this great valley, are composed of many ridges, which run parallel to each other with remarkable regularity. The middle ridge is generally the most elevated, and separates the waters of the Atlantic, from those that flow into the Mississippi. Soon after passing the summit of the principal mountains, the waters of the Ohio begin to be heard, as they dash along over a precipitous and rocky channel, seeking a spot to escape from the craggy hills, to the plains below.
After descending the last mountain ridge towards the valley, the country is still a succession of high hills, generally rounded smoothly down their sides, having more or less table land on their summits.—Those portions of Pennsylvania and Virginia, which belong to the Mississippi Valley; the eastern parts of Ohio, Kentucky and Tennessee, are generally hilly, and sometimes even mountainous. In Alabama, the hills begin to subside. The features of the country too, begin, manifestly to change. The landscape wears a different aspect. Instead of the oaks, whitewood and sycamore, we begin to hear the breeze among the tops of long leaved pines.—A long succession of pine hills and fertile valleys succeed each other; the timber becoming less and less, until we meet the extensive prairies, or savannas of Florida.
Approaching the lakes, the country becomes quite level. At the northern sections of Ohio, Indiana and Illinois, near the borders of the lakes, the surface, in some places, becomes so marshy and low, as to be covered, in winter and spring, with water from three or four inches to a foot in depth. The eastern part of Ohio is hilly, but the western portion sensibly becomes more and more level. The Ohio river originally rolled on in its whole course, through an unbroken forest; but as we approach the eastern boundary of Indiana, we begin to discover the first indications of prairie. In the western part of the State of Ohio, small and detached prairies are only found. In Indiana, the proportion of prairie is far greater, and in Illinois it far exceeds the timbered land. North of the State of Illinois, pine hills, ponds, marshes, woodland and prairie, alternate to the head waters of the Mississippi.
The surface of the country west of the Mississippi, is generally much more level than the valley east of it. There are bluffs to be sure, often high and precipitous, near the courses of the large rivers; and some portion of the country, near the Mississippi, is covered with flint knobs—singular hills of a conical shape, which, with a base of not more than a third of a mile in diameter, sometimes rise to the height of four or five hundred feet; and are covered with coarse gravel and flint stones. There are also, as in the country between the St. Francis and White rivers, high hills, which might well be called mountains. A spur of the Alleghany mountains, seems to come in to the Mississippi at the Chickasaw bluffs, and to be continued to the west of the river, in the St. Francis hills. But between the Mississippi and the Rocky mountains, a distance of twenty-five hundred miles, the general surface of the country is one vast plain, probably the largest on the face of the globe. Except the bluffs of the rivers, and flint knobs, the whole surface is entirely free from stones. On the lower courses of the Missouri, St. Francis, White, Arkansas and Red rivers, we find extensive bottoms of inexhaustible fertility covered with a dense forest; and occasionally a rich prairie, teeming with vegetation. But as we ascend these rivers, the timber becomes less and less, until, at last, we find the prairies coming in to the river banks. As the traveller recedes from the narrow and fertile belt on the streams, he finds the prairies becoming more and more dry and sterile—destitute of wood and water, and, sometimes, of all vegetation. He finds himself on a boundless waste of prairies; stretching out before him, far beyond the reach of vision; and here, he may wander for days, without finding either wood or water, and whichever way he may turn his eyes, he beholds an ocean of grass bounding the horizon. In advancing westward, he, at length, catches a glimpse of the Rocky mountains, pencilled like clouds on the blue arch of the sky. These mountains rise in lofty grandeur, twelve thousand feet above the grassy plains at their base; and some of the peaks, are supposed to be eighteen thousand feet above the level of the sea. They appear at a distance, to present an unbroken front, and to form an insuperable barrier between the Mississippi valley, and the shores of the Pacific ocean. On a nearer inspection, they are found to be, like the Alleghany mountains composed of a number of parallel ridges; and following up the streams, as they escape from the mountains, tolerable paths are found to cross them. A late traveller crossed these mountains, by following up the river Platte to its source; and from thence, down the stream that falls into Lake Bueneventura, on the western side. He states that the ascent was no where any greater than on the National road, over the Cumberland mountains. He even asserts, that the ascent was not more than three degrees; and that nature has provided a practical and good road, quite down to the plains of the Columbia.
These ranges of mountains cover a wide extent of country; and here, the principal rivers that fall into the Mississippi, have their sources. Some of these rivers wind three or four hundred miles among the mountains, before they find a passage to the plains below. The ranges at the sources of the Arkansas, and extending southward towards the Gulf of Mexico, bear the name of the Masserne mountains. A single peak of this ridge, seen at immense distances over the adjacent plains, rising into the blue atmosphere above the region of clouds, is called mount Pike. Near this mountain, the Colorado of the Pacific, the Rio del Norte of the Gulf of Mexico, the Yellow Stone of the Missouri, and the Arkansas and Red rivers of the Mississippi, have their sources. Mount Pike must therefore, be the highest point of land of this part of North America.
The Rocky mountains are at present too little known to be accurately and particularly described. They are hundreds of miles beyond the limits of cultivation, and the usual haunts of civilized man. They will for ages only attract the gaze and astonishment of wandering hunters, and adventurous travellers, who will thread the mazes of their deep gullies, as they pursue their journey to the western sea. Many of the ranges, and peaks are black, ragged and precipitous; and around their bases are strewn huge fragments of rock, detached by earthquakes and the hand of time. From this iron bound and precipitous character, they probably received the appellation of "Rocky mountains."