Keywords: Great wall of China eastern location.jpg Key showing location of maps used in composite map Image Great wall of China eastern jpg marked in red in China taken from public domain US AMS map at PCL collection http //www lib utexas edu/maps/ams/china/txu-oclc-10552568-index-full jpg Link to individual maps through PCL AMS maps for http //www lib utexas edu/maps/ams/china/ China and http //www lib utexas edu/maps/ams/manchuria/ Manchuria 1954 U S Army Map Service PD-USGov Maps of China China maps by U S Army Map Service |