1 / 3   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

2 / 3   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

3 / 3   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