mountains in full view. Thunder storms in all direction & constant spits of rain.
Site selected for astronomical station & camp pitched about 4 P.M.

Geol. In valley St. Mary R. section showing hard sandstones, considerable thickness, well horizontally bedded showing worm tracts & ripple marks. Dipping at about 20" S. Westerly. About 4 m W. of the river valley a ridge of sandstone cropping out along the edge of a hill, yellowish (metamorphosed) in colour, some layers soft & others hard. Strike N 41" W with a very steep S. Westerly dip. Found enclosed in these rocks a log of silicified wood the first found in situ.

The first flexure seen occurs on the St. Marys R. The ridges may be said to begin at the 3rd crossing

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