1. Southern Andes from the air Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Date: 1981 Format: Image
2. Lake Titicaca from the air Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Titicaca Lake (Peru and Bolivia) Lake Titicaca Date: 1981 Format: Image
3. Near Guayaquil Collection: Billie Jean Isbell Andean Collection Location: Ecuador Date: 1981 Format: Image
4. Near Guayaquil Collection: Billie Jean Isbell Andean Collection Location: Ecuador Date: 1981 Format: Image
5. Snow-capped Southern Andes Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Overviews Location: Peru Andes Date: 1981 Format: Image