THE WORK OF SNOW AND ICE. 



289 



Fig. 260. — Contrast between glaciated topography below and non-glaciated topog- 

 raphy above. The minarets in the Sierras, Cal. 



Fig. 261. — Contrast between glaciated topography below, and non-glaciated topog- 

 raphy above. Needles Mountains, from slope west of Hidden Lake. (Cross, U. S. 

 Geol. Surv.) 



