November 29, 1842 - We emerged from the basin, by a narrow, pass, upon a considerable branch of Fall [Deschutes] river, running to the eastward through a narrow valley. The trail, descending this stream, brought us to a locality of hot springs, which were on either bank. Those on the left, which were formed into deep handsome basins, would have been delightful baths, if the outer air had not been so keen, the thermometer in these being at 89°. There were others on the opposite side, at the foot of an escarpment, in which the temperature of the water was 134°. These waters deposited around the spring a brecciated mass of quartz and feldspar, much of it of a reddish color.

We crossed the stream here, and ascended again to a high plain, from an elevated point of which we obtained a view of six of the great peaks - Mount Jefferson, followed to the southward by two others of the same class; and succeeding, at a still greater distance to the southward, were three lower peaks, clustering together in a branch ridge. These, like the great peaks, were snowy masses, secondary only to them; and, from the best examination our time permitted, we are inclined to believe that the range to which they belong is a branch front the great chain which here bears to the westward. The trail, during the remainder of the day, followed near to the large stream on the left, which, was continuously walled in between high rocky banks. We halted for the night on a little by-stream.