University of Bristol - Historical Photographs of China reference number: Fr01-059. Photograph by Lai Fong (Afong Studio). This image is reproduced in History of Photography in China, Chinese Photographers 1844-1879 by Terry Bennett (Quaritch 2013), on page 172, and captioned: '59. Blue Snake Rapids. (30 li below Yen-ping)'.
Blue Snake Rapids, below Nanping