The Cordillera Huaytapallana, a glacierized range in the Cordillera Central, lies between lat 11°47' and 11°56'S. and long 75°00' and 75°05'W. It is 17 km long and trends in a northwesterly direction (fig. 2, table 1). The glacierized area, estimated from Landsat images, covers 35 km2. Drainage is into the Atlantic Ocean by the Río Mantaro. The highest peak is the Nevado Lasuntay at 5,720 m asl.
The Cordillera de Vilcabamba is a mountain range in the Cordillera Central between lat 13°10' and 13°27'S. and long 72°30' and 73°15'W. (fig. 2, table 1). It extends in an easterly direction for about 85 km. The glacierized area is estimated from Landsat images to be 173 km2. Drainage is to the Atlantic Ocean by Río Apurimac and Río Urubamba. The highest peak is the Nevado Salccantay at 6,271 m asl.
The Cordillera La Raya is a mountain range situated northwest of the Peruvian altiplano between lat 15°10' and 15°26'S. and long 70°36' and 71°14'W. It extends about 60 km in an easterly direction, and the glacierized area is estimated from Landsat images to be 88 km2 (fig. 2, table 1). Drainage is into the Atlantic Ocean, the Pacific Ocean, and the Lago Titicaca basin. Chinchina, the highest peak, is 5,489 m asl.
U.S. Geological Survey, U.S.Department of the Interior