Aerial photo taken on Aug. 19, 2018 shows a winery constructed on the site of an abandoned mine in Changli County, north China's Hebei Province. The discarded mine and damaged mountain revive as the local government has been stepping up measures to rehabilitate the ecological environment. (Xinhua/Yang Shiyao)

Aerial photo taken on Aug. 18, 2018 shows a park constructed on the site of an abandoned mine in Changli County, north China's Hebei Province. The discarded mine and damaged mountain revive as the local government has been stepping up measures to rehabilitate the ecological environment. (Xinhua/Yang Shiyao)

Aerial photo taken on Aug. 18, 2018 shows a park constructed on the site of an abandoned mine in Changli County, north China's Hebei Province. The discarded mine and damaged mountain revive as the local government has been stepping up measures to rehabilitate the ecological environment. (Xinhua/Yang Shiyao)

Aerial photo taken on Aug. 18, 2018 shows a park constructed on the site of an abandoned mine in Changli County, north China's Hebei Province. The discarded mine and damaged mountain revive as the local government has been stepping up measures to rehabilitate the ecological environment. (Xinhua/Yang Shiyao)

Aerial photo taken on Aug. 19, 2018 shows Yingzhou Park in Hejian City, north China's Hebei Province. Yingzhou Park, transformed from an abandoned sump, has become an ecological park covering 51 hectares of green space and 44 hectares of water area. (Xinhua/Zhu Xudong)