Fig. 131 — Terraced valley slopes at Huaynacotas, Cotahuasi Valley, at 11,500 feet 

 (3,500 m.). Solimana is in the background. On the floor of the Cotahuasi Canyon fruit 

 trees grow. At Huaynacotas corn and potatoes are the chief products. The section is 

 composed almost entirely of lava. There are over a hundred major flows aggregating 

 5,000 to 7,000 feet thick. 



