H 



S.\I IT 1 1 SOX TAX ^J ISCKLI.A N KOl'S CDI.LKCTIOXS 



Glacier Lake-. The rucks exijosod in the hi^^hol chtT> i>f .Mount 

 l"orl)es and AJons Peak belong' to the great L'arl)oniferous system 

 of rcjcks of this region, lielow this series occur the Devonian rocks, 

 the snow-capjied cliti's shown in hgure i al)ove .\lons ( llacier. form- 

 ing' a belt i.ooo feet or more in tliickness. and below these are the 

 strata of tlie Sarhach formation (jf the (Jrdovician system, and 



Fig. 15. — Mountain sliec-j) in ^ame sanctuary. Rocky Mountains Park, 

 .■\lberta, Canada. Piioto^raph iiy Mr. and Mrs. C. D. Walcott, 1919. 



beneath the Sarhach tlie five formations assigned to the L']ii)er Cam- 

 brian series. Attention should be called here to Mount .Murchison. 

 figure 4, where there is almost the same series as that ex]j(jsed in the 

 clififs on the long mountain sloj^es of figure i. To the left (jf Mount 

 -Murchison in figure 4 there is a low ridge formed of strata of 

 -Middle C'aml)rian age which ])asses beneath the rocks of AFount 

 -Murchisori. 



