231. Quito Collection: Billie Jean Isbell Andean Collection Location: Quito (Ecuador) Date: 1981 Format: Image
232. Imbabura Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Imbabura (Ecuador) Date: 1981 Format: Image
233. Hang glider over Quito Collection: Billie Jean Isbell Andean Collection Location: Quito (Ecuador) Date: 1981 Format: Image
234. Quito, Lauris McKee Collection: Billie Jean Isbell Andean Collection Location: Quito (Ecuador) Date: 1981 Format: Image
235. Hillside agriculture, Imbabura Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Imbabura (Ecuador) Date: 1981 Format: Image
236. Hillside agriculture, Imbabura Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Imbabura (Ecuador) Date: 1981 Format: Image
237. Imbabura Collection: Billie Jean Isbell Andean Collection Set: Vertical ecology of the Andes: Valley Location: Imbabura (Ecuador) Date: 1981 Format: Image
238. Volcanos from Pichincha Collection: Billie Jean Isbell Andean Collection Location: Guagua Pichincha Volcano (Ecuador) Date: 1981 Format: Image
239. Volcano from Pichincha, Ecuador Collection: Billie Jean Isbell Andean Collection Location: Guagua Pichincha Volcano (Ecuador) Date: 1981 Format: Image
240. Hang glider over Quito Collection: Billie Jean Isbell Andean Collection Location: Quito (Ecuador) Date: 1981 Format: Image