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Typical view of Midway mountains, with Greenwood in the 

 foreground and Phoenix in the basin at the head of Twin 



creek 73 



Portion of glory hole, Knob Hill and Ironsides mine. Phoenix. 79 



The trough-shaped glaciated valley of Similkameen river 106 



General view of Interior Plateau region 113 



General view of Interior Plateau region at Tulameen 121 



Thin section of periodite, showing the occurrence of diamonds 



(within white circles) associated with chromite 125 



Thin section of chromite segregation in peridotite, showing the 



occurrence of diamonds in veinlets 125 



Lubecker excavator, Tofield Coal Co 134 



Steam Shovel, Dobel Coal Company. Stripping coal at Tofield, 



Alta 134 



Folds in Outer range south of Athabaska river 138 



Athabaska river and Outer range. Rocky mountains 141 



Jasper lake, Athabaska river from Roche Miette 141 



Mount Robson from Grand Forks, Fraser river 143 



Relief map of the Great Plains 145 



