Sixty-five kilometres north of Beijing, 30 kilometers west of the district of Huairou, the Huanghuacheng (Yellow Flowers) section of the Great Wall is completely unreconstructed. Here the genuinely old wall is semi-eroded but a few fragments remained almost intact.        It's alleged that Lord Cai masterminded this section, applying meticulous quality control. Each inch of the masonry represented one labourer's whole day's work. When the Ministry of War got wind of the extravagance, Cai was beheaded omit for his efforts. Years later, a general judged Lord Cai's wall to be exemplary and he was posthumously rehabilitated. No matter how much truth is in this amazing story, strategically, this was an important stretch, guarding a branch way leading to the capital.       From a little reservoir, the wall climbs in both directions. The section to the east, across the dam, is comparatively easy to climb. The section to the west is in bad shape, accessible only to those risking to scramble up the steep slope. In theory, hiking along this part of the wall is prohibited. Other Hiking Sections on the Great Wall: Old Dragon's Head/Shanhaiguan   Mutianyu Great Wall Jiaoshan Great Wall Jiankou Great Wall Dongjiakou Great Wall Huanghuacheng Great Wall Jiumenkou Great Wall Juyongguan Pass Huangyaguan Pass Badaling Great Wall Simatai Great Wall Zijingguan Great Wall Jinshanling Great Wall Wulonggou Great Wall Gubeikou Great Wall