Introduction to selenium-rich villages: Dashan Village is famous throughout the country for its selenium content and is one of the three largest selenium-rich villages in China. The soil here is rich in selenium, a trace element necessary for the human body, ranking second in the country, second only to Enshi, Hubei. The mountains in the village are rolling, with green ancient trees, criss-crossing valleys and ravines, flowing springs and waterfalls, green tea gardens on the mountainside, layers of terraces, ancient villages from the Ming and Qing Dynasties, selenium-rich springs, selenium-rich tea gardens, Shenlong Valley, and Jiangjun Rock. , Tiger Rock, Frog Rock, Guanyin Cave, Tianfang Lake, etc.