_The Upper Valley of the Mississippi_ possesses a surface far less diversified than the Valley of the Ohio. The country where its most northern branches take their rise, is elevated table land, abounding with marshes and lakes, that are filled with a graniferous vegetable called wild rice. It is a slim, shrivelled grain of a brownish hue, and gathered by the Indians in large quantities for food. There are tracts of arable land covered with elm, linden, pine, hemlock, cherry, maple, birch and other timber common to a northern climate. From the same plateau flow the numerous branches of Red river, and other streams that flow into lake Winnipeck, and thence into Hudson's bay. Here, too, are found some of the head branches of the waters of St. Lawrence, that enter the Lake of the Woods, and Superior. In the whole country of which we are speaking, there is nothing that deserves the name of mountain. Below the falls of St. Anthony the river bluffs are often abrupt, wild and romantic, and at their base and along the streams are thousands of quartz crystals, carnelians and other precious stones. But a short distance in the rear, you enter upon table land of extensive prairies, with clumps of trees, and groves along the streams. Further down, abrupt cliffs and overhanging precipices are frequently seen at the termination of the river alluvion. The whole country northwest of the Ohio and east of the Mississippi, as far north as the falls of St. Anthony, exhibits striking marks of a diluvial formation, by a gradual retiring of the waters. From the summit level that divides the waters of the lakes from those of the Mississippi, through Ohio, Indiana, Illinois, and Wisconsin, which is scarcely a perceptible ridge, to the south point of Illinois at the junction of the Ohio and Mississippi, appears to have once been a plane with an inclination equal to 12 or 15 inches per mile. The ravines and vallies appear to have been gradually scooped out by the abrasion of the waters. "The _Lower Mississippi Valley_, has a length of 1,200 miles, from northwest to southeast, considering the source of the Arkansas, and the mouth of the Mississippi river as extreme points; reaching from north latitude 29° to 42°, and without estimating mountains, ridges, or peaks, differs in relative elevation at least 500 feet. "The _Arkansas river_ rises near north latitude 42°, and longitude 32° west from Washington, and falls into the Mississippi at 33° 56', passing over eight degrees of latitude.