NO. I 



SMITHSONIAN EXPLORATIONS, I9T9 



the central portion of figure i, the upper hmit of the section being 

 above the narrow vertical F-shapeci snow bank directly over the 

 glacier. The evenly bedded rocks sloped at an angle of from lo to 

 20 degrees, westward, which accounts for the great thickness mea- 

 sured, although the elevation above the canyon bed was not more 

 than 3,500 feet. 



Fig. 3. — Walcott camp located in the brush beside Glacier River, i mile 

 (1.6 km.) below the foot of Southeast Lyell Gacier. which is shown more 

 distinctly in ligure 5. Photograph by Mrs. C. D. Walcott, 1919. 



The glaciers. — The Southeast Lyell Glacier is beautifully shown 

 in figure i. and also in figure 5, and more in detail by figure 6, where 

 it is cascading' over a high clifif. Figure i is a profile view of Lyell 

 Glacier from the Continental Divide on the right to where it abuts 

 ag-ainst the low clifif on the left. In figure 6 the foot of the glacier 

 is shown, along" with large amounts of debris forming the terminal 

 moraine, also the dark mass of broken rock and debris carried on the 

 back of the glacier, which is shown in figures i and 6. 



A portion of the great snow field from which both Lyell and 

 Mons glaciers flow is shown on the slope of Mons Peak on the left 

 side of figure 5. This snow field extends back of Division Mountain, 



