601. Mitad del Mundo Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Mitad del Mundo (Ingapirca Site, Ecuador) Date: 1981 Format: Image
602. Mitad del Mundo Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Mitad del Mundo (Ingapirca Site, Ecuador) Date: 1981 Format: Image
603. Quito Collection: Billie Jean Isbell Andean Collection Location: Quito (Ecuador) Date: 1981 Format: Image
604. Quito Collection: Billie Jean Isbell Andean Collection Location: Quito (Ecuador) Date: 1981 Format: Image
605. Southern Andes Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Overviews Location: Peru Andes Date: 1981 Format: Image
606. Southern Andes from the air Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Overviews Location: Peru Andes Date: 1981 Format: Image
607. Rio Pampas Saqsamarca Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Puna Location: Peru Pampas River Valley (Peru) Saqsamarca (Peru)Saxamarca (Peru) Date: 1981 Format: Image
608. Snow-capped Southern Andes Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Overviews Location: Peru Andes Date: 1981 Format: Image
609. Southern Andes, snow-capped Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Overviews Location: Peru Andes Date: 1981 Format: Image
610. Southern Andes from the air Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Overviews Location: Peru Andes Date: 1981 Format: Image
