Down in the valley proper, the field of vision is limited by the side bluffs, and you see but comparatively little of the country generally. But ascend the bluffs on either side, and the vast ocean of the Plains stretches boundlessly before you--not flat, but billowy with swells and ridges, an illimitable plateau, with only here and there a solitary "butte," sharply defined against the clear sky. In spring this whole vast extent is a wilderness of verdure and flowers; but the summer skies, untempered by rain, as elsewhere said, scorch and burn the ground to cinders, and long before autumn comes all vegetation there practically perishes. Even the hardy buffalo-grass becomes brown and tinder-like, and the only grazing there is in the cañons and valleys. Nevertheless our Plains have hitherto sustained buffalo by the million, and do it still, although these shaggy monsters have of late mostly disappeared from the Platte region. We did not see one in our entire trip to Denver; but a friend, who came through a month or so later, over the Smoky Hill route, where there was less travel, reported buffalo there yet by the horizon full--the whole country being substantially black with them. The short and sweet buffalo-grass is indigenous through all this region, and is said to be nutritious, even when dried up, the year round. What a magnificent range for stock these great Plains will yet afford, when the country becomes more thickly settled up! Much of this region is marked on the old maps as the "Great American Desert;" but from all we saw and heard I doubt not, as a whole, it will yet become the great stock-raising and dairy region of the Republic, whence we shall export beef and mutton, leather and wool, in exchange for cloth and steel.[3]