The Great Northern Wall of China

Jean baptiste had been misinformed or misunderstood. The structure that he described was definitely not the wall of chin sho hang two centuries before christ. Having been there myself, i can tell you that it is a structure of stone, brick, mortar, dirt, earth and ountain. And there are many chasms in it. Nor was it part of the fortification lines constructed well to the north of the main great wall by the gin and lea dynasty in the eleventh and twelfth centuries. All those had long since crumbled to dust or been taken apart piecemeal by people wanting to build other more useful structures.