151 



TEN 



first on the mountain top 



ARIZONA IS NOT ALL DESERT, BECAUSE SO MUCH OF IT IS 



mountain. Scores of separate ranges, each with a name of 

 its own, are sprinkled here and there, and in the southern 

 part of the state they often rise abruptly from the desert 

 floor itself. In fact it is nearly impossible to move any- 

 where so far away from them that the horizon is not ringed 

 around with peaks. 



Many were formed at about the same time as the main 

 body of the Rockies, many others are volcanic cores 

 belched up in more recent times. And all, though espe- 

 cially of course the ancient ones, are less high than they 



