In pics: ancient slate building complex in Qinling Mountains

Liu Changsuo, 63 years old, is the only resident living in the slate buildings on the moungtain in Jin'an Village at Shipo Township of Luonan County, northwest China's Shaanxi Province, Aug. 7, 2018. The ancient slate building complex in the Qinling Mountains, also called "daziliang" by local people, is recognized as "a living fossil of ancient folk houses in Qinling Mountains". (Xinhua/Tao Ming)