Prof. Mortel: Cholpon-Ata, Kyrgyzstan
Prof. Mortel: Cholpon-Ata petroglyph site, Kyrgyzstan (2)
Prof. Mortel: Cholpon-Ata petroglyph site, Kyrgyzstan (1)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (2)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (3)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (4)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (5)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (6)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (7)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (8)
Prof. Mortel: Mountains near Cholpon-Ata, Kyrgyzstan (2)
Prof. Mortel: Mountains near Cholpon-Ata, Kyrgyzstan (1)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (9)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (10)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (11)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (12)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (13)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (14)
Prof. Mortel: Petroglyphs, Cholpon-Ata, Kyrgyzstan (1)