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Show 1836- 1837] Flagg's Far West 275 herbage. In one direction the view is that of a boundless plain of verdure; and at intervals in the deep emerald is caught the gleam from the glassy surface of a lake, of which there are many scattered over the peninsula. All along the northern horizon, curving away in a magnificent sweep of forty miles to the west, rise the hoary cliffs of the Mississippi, in the opposite state, like towers and castles; while [ 17] the windings of the stream itself are betrayed by the heavy forest- belt skirting the prairie's edge. It is not many years since this bank of the river was perfectly naked, with not a fringe of wood. Tracing along the bold facade of cliffs on the opposite shore, enveloped in their misty mantle of azure, the eye detects the embouchure of the Illinois and of several smaller streams by the deep- cut openings. To the left extends the prairie for seventy miles, with an average breadth of five from the river, along which, for most of the distance, it stretches. Here and there in the smooth surface stands out a solitary sycamore of enormous size, heaving aloft its gigantic limbs like a monarch of the scene. Upward of fifty thousand acres are here laid open to the eye at a single glance, with a soil of exhaustless fertility and of the easiest culture. The whole plain spread out at the foot of the Mamelles bears abundant evidence of having once been submerged. The depth of the alluvion is upward of forty feet; and from that depth we are told that logs, leaves, coal, and a stratum of sand and pebbles bearing marks of the attrition of running waters, have been thrown up. Through the middle of the prairie pass several deep canals, apparently ancient channels of the rivers, and which now form the bed of a long irregular lake called Marais Croche; there is another lake of considerable extent called Marais Temps Clair. 110 This beautiful prairie once, then, formed a por- "• Mania Croche ( Crooked swamp) is located a few miles northeast of St |