Upon the right shore of the river are seen immense plains, as smooth as if the husbandman had passed over them with his roller.

As you approach the mountains the soil becomes more and more unequal and sterile; the ground is, as it were, pierced in a thousand places by primitive rocks, which appear like the bones of a skeleton whose flesh is partly consumed.

The surface of the earth is covered with a granite sand and huge irregular masses of stone, among which a few plants force their growth, and give the appearance of a green field covered with the ruins of a vast edifice.

These stones and this sand discover, on examination, a perfect analogy with those which compose the arid and broken summits of the Rocky Mountains.

The flood of waters which washed the soil to the bottom of the valley afterwards carried away portions of the rocks themselves; and these, dashed and bruised against the neighboring cliffs, were left scattered like wrecks at their feet.