originate from the beach of some neighbouring river, and, in about an hour after, we came upon the rocky bank of the First Red Fork or Salt river, which, though very low, was still red and muddy, bordered with an extensive beach similar to the Arkansa, and not greatly differing from it apparently in point of magnitude. Along the argillaceous banks I observed saline incrustations, and, on tasting the water, I found it to be nauseous and impotably saline.[205] Our horses, however, naturally fond of salt, drank of it with the utmost greediness. Though gratified by the sight of this curious stream, which we had so tediously sought, I now lamented the loss of the fine spring water lately afforded us by the barren hills. This extensive stream constitutes the hunting boundary of the Pawnees and Hietans. Its first view appeared beautifully contrasted with the broken and sterile country through which we had been travelling. The banks of cotton-wood (Populus monilifera), bordered by the even beach, resembled a verdant garden in panorama view. A few days journey to the west, Mr. Lee informs me, that there are extensive tracts of moving sand hills, accompanied by a degree of sterility little short of the African deserts.
{207} 4th.] We continued a few miles up the banks of this saline stream, crossing it from point to point. But the following day (5th) we concluded on leaving it, studying our safety from the Osages, whose traces became now more and more evident. We pursued our course along the sand beaches of the river, now oppressively hot, and about noon turned out into a shade. Here, unfortunately, while Mr. Lee was busied about his beaver traps, his horse
