People work at a restoration site of a disused mine in Maquanzi Town of Qinglong Manchu Autonomous County, north China's Hebei Province, Sept. 5, 2020. In recent years, Qinglong Manchu Autonomous County has focused on restoring open pits and reclaimed 8,762 mu (about 584 hectares) of land. (Xinhua/Yang Shiyao)
