on the S. side for some way up the mountain. The terraces however do not exactly correspond in level. The top of one sometimes being on the level of the middle of another equally well marked. Is it possible that faulting has taken place since the formation of terraces (see recent disturbance of terraces in Hectors acct.)
Drawing

One of the branch terraces, cut into by the brook shows a great thickness of clean pebbles very uniform in size & of a general pale purple tint.

Camp Belly R. 6 A.M.
B. 25.18
T. 54"
Calm. Partly cloudy

Waterton Lake at eflux of R 11 A.M. B. 25.31
Tops of Foot-hills at mouth of Pass. noon. 25.03
Mouth of Pass 1 P.M. Thermometer 72". Wind SW
Water of brook 54"

Camp No.1 51/2 m. into pass 8.30 P.M.
B. 24.71
T. 58"

Aug 15. The chief object of the expedition being to attain to the monument built on the watershed by the former Boundary Commission in 1861, & by doing so tie in the work of the two surveys.