the distance. The rock composing the summit consists of very
coarse, dark, volcanic conglomerate; the lower parts appeared
to be of a slaty structure. The highest trees were a few
scattered cedars and aspens. From the immediate foot of the
peak, we were two hours reaching the summit, and one hour and
a quarter in descending. The day had been very bright, still,
and clear, and spring seemed to be advancing rapidly. While
the sun is in the sky the snow melts rapidly, and gushing
springs cover the face of the mountain in all exposed places,
but their surface freezes instantly with the disappearance of
the sun.

I obtained to-night some observations, and the result from
these, and others made during our stay, gives for the latitude
38 deg. 41' 57", longitude 120 deg. 25' 57" [the correct
longitude for this place is 119 deg. 58'], and rate of the
chronometer 25.82.

The next night they encamped on the headwaters of a little creek,
where at last the water found its way to the Pacific. The following
morning they started early.

The creek acquired a regular breadth of about 20 feet, and we
soon began to hear the rushing of water below the icy surface,
over which we traveled to avoid the snow; a few miles below
we broke through, where the water was several feet deep, and
halted to make a fire and dry our clothes. We continued a few
miles further, walking being very laborious without snowshoes.

I was now perfectly satisfied that we had struck the stream on