©ostelsta 47 



This upper limit is commonly called 

 the "timber line." There is no defi- 

 nite "snow line;" this changes with 

 every storm or with every sunny day. 



The trees in the higher regions show 

 the effect of wind to a pronounced 

 degree. The winds blow mostly from 

 the west and the trees assume a very 

 one-sided appearance. Near timber 

 line they are all very much dwarfed 

 and gnarled. 



The mountain tops are made up 

 of rocks, either in large masses, or 

 broken up by the action of frost into 

 irregular boulders. There is but little 

 gravel or soil in which plants might 

 find place. Nearly all the plants of 

 the peaks occupy crevices or other 

 sheltered places. 



Above timber line there are almost 

 no woody plants, although a few willows 

 less than a decimeter high are found 



