288 



SOUTH AMERICA— THE ANDES REGIONS 



facing northwards and intercepting the sands, wliicli are carried along by the 

 current setting southwards. South of the Kio Santa the coast is similarly indented 

 by remarkably regular oval inlets, separated by islets and promontories from the 



Fig. 111. — Ports of Chimbote and Casma. 

 Scale 1 : 550,000. 



78°40- 



West or Greenwich 



7S°20- 



Oto 10 

 Fathoms. 



Depths. 



10 to 50 

 Fathoms. 



50 Fathoms 

 and upwards. 



12 Miles. 



open sea. The sandy surf rolling landwards develops graceful curves which 

 reproduce on a large scale the symmetrical oval of the shore-line. 



Off the Peruvian seaboard the marine bed slopes rapidly down to great 

 depths ; hence there are scarcely any islands, and even these are little more than. 



