Saihanba, situated between northern China's Hebei Province and Inner Mongolia Autonomous Region, is China's largest man-made woodland. The name means "beautiful highland," and the area has transformed from a barren wasteland to a sea of trees thanks to 55 years of diligent work from several generations of forestry experts and workers. It now boasts about 750 square kilometers of woodland, forming a strong wind shield for northern China and helping to purify 137 million cubic meters of water every year. Saihanba has been called a classic example of ecology protection in China.