English operator: Panoramio described at URL: https://web.archive.org/web/20161028151513/http://www.panoramio.com/photo/103837575...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102152924/http://www.panoramio.com/photo/90139741...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028190506/http://www.panoramio.com/photo/90140605...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030175922/http://www.panoramio.com/photo/104443259...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026001753/http://www.panoramio.com/photo/74979852 determination method:...