THE COUNTRY OF THE SHEPHERDS 



61 



Fig. 34 — Regional diagram to show the typical physical conditions and relations 

 in an intermont basin in the Peruvian Andes. The Cuzco basin (see Fig. 37) is an 

 actual illustration; it should, however, be emphasized that the diagram is not a 

 " map " of that basin, for whilst conditions there have been utilized as a basis, the 

 generalization has been extended to illustrate many basins. 



margin and of coarse stony waste at their heads. Hence the val- 

 ley farms also extend over the edges of the fans, while only pas- 

 ture or dense chaparral occupies the upper portions. Finally 



