Bolivia                      
Bolivian ranges: Cordillera Occidental, Cordillera Apolobamba (including Cordillera de Muñecas), Cordillera Real, Cordillera de Quimsa Cruz, Cordillera Oriental (southern peaks and ranges)

Chile (see also Patagonia)
General Information (Chile)

Central Chile (lat. 31º- 35ºS.) - Northern Massifs, Main Range, Ranges South of Maipo.         

Northern Andes of Chile and Argentina (lat. 21º- 31ºS.) - Ojos del Salado         

Colombia
Colombian ranges:  Sierra Nevada de Santa Marta, Sierra Nevada de Cocuy, Cordillera Central       

Ecuador

Patagonia (see also Argentina and Chile)
North Patagonian Andes of Chile and Argentina (lat. 35º- 45ºS.) - Chilean Peaks, Argentine Peaks

Patagonia - Cordillera de Castillo, North Ice-cap, San Lorenzo Group, South Ice-cap, Fitzroy-Cerro Torre Group, Paine Group, Peninsula Muñoz Gamero (and other southerly peaks)        

Peru
Western Ranges: Northern Cordilleras (including Cordillera Negra and Cordillera Rosko), Cordillera Blanca, Cordillera Huallanca, Cordillera Huayhuash, ,Nudo Millpo, Cordillera Raura, Cordillera La Viuda (including Morococha, Cerro de Pasco), Cordillera Central, Cordillera de Chonta,  Cordillera Occidental of South Peru, (including Huanzo, Chila, Volcanoes, Barroso)

Eastern Ranges: Cordillera Huagaruncho, Cordillera Huaytapallana, Cordillera Vilcabamba, Cordillera Urubamba, Cordillera Vilcanota (including La Raya, Nudo de Ayacachi), Cordillera de Carabaya (including Crucero-Aricoma), Cordillera Apolobamba   See Bolivia

Tierra del Fuego                   Sarmiento, Cordillera Darwin       

Venezuela
Sierra Nevada de Merida       

Appendices
References for other climbing areas in South America, Glossary of Spanish words