81. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
82. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
83. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
84. Ingapirca Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Date: 1981 Format: Image
85. Rumicucho Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Pucara de Rumicucho Site (Ecuador) Date: 1981 Format: Image
86. Castillo , W. horizon seen from the East Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Castillo (Ingapirca Site, Ecuador) Date: 1981 Format: Image
87. Pilaloma, Ingapirca, looking West Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Pilaloma (Ingapirca Site, Ecuador) Date: 1981 Format: Image
88. Ingapirca, Pilaloma Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Pilaloma (Ingapirca Site, Ecuador) Date: 1981 Format: Image
89. Ingapirca , sunset through gate, Castillo Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Castillo (Ingapirca Site, Ecuador) Date: 1981 Format: Image
90. Ingapirca , NE horizon seen from SW Collection: Billie Jean Isbell Andean Collection Set: Zenith sun series Location: Ingapirca Site (Ecuador) Date: 1981 Format: Image