Welcome to China Report's Digital Introduction to the Cang River (Cang He also Hecang) at YuMen Pass, the Jade Gate about 110 KM North-West outside of Dunhuang in Gansu Province.
A Full Google Earth Supported Map Overview of All Structures of the Great Wall of China from East to West, by DrBen.Net (c) ChinaReport.com and Google.com.