They continued on for upwards of a hundred miles; with vast prairies extending before them as they advanced; sometimes diversified by undulating hills, but destitute of trees.  In one place they saw a gang of sixty-five wild horses, but as to the buffaloes, they seemed absolutely to cover the country.  Wild geese abounded, and they passed extensive swamps that were alive with innumerable flocks of water-fowl, among which were a few swans, but an endless variety of ducks.

The river continued a winding course to the east-north-east, nearly a mile in width, but too shallow to float even an empty canoe.  The country spread out into a vast level plain, bounded by the horizon alone, excepting to the north, where a line of hills seemed like a long promontory stretching into the bosom of the ocean.  The dreary sameness of the prairie wastes began to grow extremely irksome.  The travellers longed for the sight of a forest, or grove, or single tree, to break the level uniformity, and began to notice every object that gave reason to hope they were drawing towards the end of this weary wilderness.  Thus the occurrence of a particular kind of grass was hailed as a proof that they could not be far from the bottoms of the Missouri; and they were rejoiced at putting up several prairie hens, a kind of grouse seldom found far in the interior.  In picking up driftwood for fuel, also, they found on some pieces the mark of an axe, which caused much speculation as to the time when and the persons by whom the trees had been felled.  Thus they went on, like sailors at sea, who perceive in every floating weed and wandering bird, harbingers of the wished-for land.

By the close of the month the weather became very mild, and, heavily burdened as they were, they found the noontide temperature uncomfortably warm.  On the 30th, they came to three deserted hunting camps, either of Pawnees or Ottoes, about which were buffalo skulls in all directions; and the frames on which the hides had been stretched and cured.  They had apparently been occupied the preceding autumn.

For several days they kept patiently on, watching every sign that might give them an idea as to where they were, and how near to the banks of the Missouri.

Though there were numerous traces of hunting parties and encampments, they were not of recent date.  The country seemed deserted.  The only human beings they met with were three Pawnee squaws, in a hut in the midst of a deserted camp.  Their people had all gone to the south, in pursuit of the buffalo, and had left these poor women behind, being too sick and infirm to travel.

It is a common practice with the Pawnees, and probably with other roving tribes, when departing on a distant expedition, which will not admit of incumbrance or delay, to leave their aged and infirm with a supply of provisions sufficient for a temporary subsistence.  When this is exhausted, they must perish; though sometimes their sufferings are abridged by hostile prowlers who may visit the deserted camp.