74 



THE ROYAL SOCIETY OF CANADA 



Fraser River 

 st Tête-Jaune Cache 

 Elev 2402' 



After JM'E^o/ i.GSMalhch J| 



Columbia River 

 near Golden 



Eiev esao' 



Upper Columbia Lake 

 near Canal Flats 



Kootenay River 

 near Cranbrook 

 Llev 2380 



MUrRADalj i. SJSchofield s\ 



Pleistocene 



Legend 



Devonian 



Ordovician 



fg 



Pre-CAmbri&n Shuswap 



Horizontal and vertical scale 



CâmbriôLfi 



StructuraJ sections across the 

 RocUy Mountain Trench, Britrsh Columbiei 



By S. J. Schofidd 



Figure 1 



