Fig. 3 — From ice to sugar cane, Urubamba Valley, at Colpani. On the north- 

 eastern border of the Cordillera Vilcapampa looking upstream. In the extreme, back- 

 ground and thirteen sixteenths of an inch from the top of the picture is the sharp 

 peak of Salcantay. Only the lower end of the more open portion of the Canyon of 

 Torontoy is here shown. There is a field of sugar cane in the foreground and the 

 valley trail is shown on the opposite side of the river. 



