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SMITHSONIAN MISCELLANEOUS COLLECTIONS 



[vol. 47 



slopes east and then northeast. It is reached most conveniently from 

 Laggan, via Lake Louise and Moraine Lake, at which place the 

 Canadian Pacific Railway maintains a camp during the summer, 

 located two miles from the glacier. The glacier is of peculiar shape, 

 having a breadth of two miles and a length of one-half to one mile, 

 presenting a total frontage of nearly three miles (pi. lxvii). It is fed 

 by the snows which fall to the eastward of the continental divide, 

 not differing greatly in amount from that of the neighboring Lake 

 Louise valley, but there is no extensive collecting area, a small neve 



Deltaform. 



Hungabee. 



Fig. 80. — Debris covered surface of Wenkchemna slacier. 



field and a correspondingly small amount of ice supplied the glacier. 

 It has survived probably only because the surface and front are so 

 heavily veneered with rock debris (fig. 80), from the nearly vertical 

 cliffs at the back, that it is difficult to catch a glimpse of the ice. 

 The peak of Deltaform, the highest crest of the Divide just here. 

 is 10,945 ft. A. T., but the glacier itself lies mainly between 8,000 

 and 6,000 ft., according to the maps of Messrs. Wheeler and Wilcox. 

 _'. Piedmont Type. — A general survey of the surface of the glacier 

 shows that it is formed by the lateral coalescence of ten to twelve 

 ice streams, each of which maintains its identity, more or less per- 

 fectly, from its origin to its nose and is separated from its neighbor 



