21. Removing stone Collection: Billie Jean Isbell Andean Collection Location: Chuschi (Peru) Date: 2001 Format: Image
24. Alpacas grazing, hillside agriculture Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Location: Chuschi (Peru) Date: 2001 Format: Image
25. Billie Jean Isbell in bofedal, dry season Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Location: Chuschi (Peru) Date: 2001 Format: Image
26. Alpacas grazing, La Unión Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Date: 2001 Format: Image
27. Potato fields, La Unión Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Location: Quispillaccta (Peru) Quispillacta (Peru)Quispillaqta (Peru) Date: 2001 Format: Image
28. Puna wetlands Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Date: 2001 Format: Image
29. Alpacas grazing, La Unión Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Date: 2001 Format: Image
30. Municipal building of Chuschi Collection: Billie Jean Isbell Andean Collection Date: 2001 Format: Image