13. Quito from Pichincha Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Quito (Ecuador) Date: 1981 Format: Image
14. Lake near Otovalo, with alpaca Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Otavalo (Ecuador) Otovalo (Ecuador) Date: 1989 Format: Image
15. Otovalo alpaca Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Otavalo (Ecuador) Otovalo (Ecuador) Date: 1989 Format: Image
16. Rio Pampas, Chuschi Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Chuschi (Peru) Pampas River Valley (Peru) Date: 1996 Format: Image
17. Cancha Cancha Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Date: 1996 Format: Image
18. Rio Pampas Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Pampas River Valley (Peru) Date: 1996 Format: Image
19. Rio Pampas Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Pampas River Valley (Peru) Date: 1996 Format: Image
20. Llamas Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Date: 1996 Format: Image
21. Hillside agriculture Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Date: 1996 Format: Image
22. Hillside agriculture Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Date: 1996 Format: Image
23. Hillside agriculture Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Date: 1996 Format: Image
24. Hillside agriculture Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Date: 1996 Format: Image
