& even here on the threshold of the mountains begin to find many new plants.

Started again in the afternoon & travelled about 51/2 miles W along the pass. The trail is rough but not very bad. It follows sometimes along the bank of the stream, but often climbs far up the slopes of the mountains. So far the bottom of the valley is generally flat, sometimes forming little meadows & sometimes clad with poplar & pine. Camp on a little meadow patch surrounded by thick pine woods just where the valley branches. One arm running S. Westward, the other a little N of West.

The trail also branches, but that going up the S.W. valley is evidently the most travelled.
Bones of buffalo are frequent as far as the camping place, but beyond this point were not seen & this probably marks the limit to which these animals penetrate the hills in winter.

Geol. The Mountains along the Northern side of the pass offer the best & most continuous section. At the entrance of the pass the Mt on the S. side appears to be composed of disturbed slates & sandstones probably belonging to same series as those presently to be mentioned as forming the N entrance Mt but difficult exactly to correlate. The E. end of Mt. pretty regular, shows the crimson sandstone about halfway up. The Mg-grit being below the base of section upon road. Dip W.SW. at low angles.

The lower part of the N. Mountain composed of reddish, greenish & bluish-grey coloured slates & sandstones considerably altered. These form a talus