A discarded mine located in the city of Handan, north China’s Hebei Province, is now Zishan eco-park. A picture taken on Tuesday shows the difference – the waste mine has become an eco-park with beautiful and colorful scenery. /Xinhua Photo

To strength environmental management, Congtai District closed coal mines and enhanced stricter scrutiny and regulations. The government announced the building of Zishan Park and Ziyunhu reservoir to improve the environment. /Xinhua Photo

At present, the construction of Zishan eco-park is nearly completed, with 800,000 flowers and trees. The surrounding environment has been much improved. /Xinhua Photo