SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 75, NO. 5, PL. 74 



Burgess shale fossil quarry on steep west slope of ridge between 

 Mount Wapta and Mount Field, at about 7,700 feet (2,346.9 m.) 

 altitude (see pi. 70). The high peaks of the Ottertail Range are seen 

 in the distance southwest of Mount Dennis. This view shows the 

 appearance of the hard siliceous shale in situ. 



Locality. — 7 miles (11.3 km.) north-northeast by trail from Field, 

 British Columbia. 



