Datianba in Yandao Ancient Town is located at the northern end of Gangshan (Changyangang) in CSR County. "Rock is the wall and dam is the city", covering an area of more than 20,000 mu. The Qin Dynasty destroyed Chu (222 years ago) and moved to Chu, where the Yanwang family lived, and made General Qin Chiji a Yanjun-managed Yanwang family. In the early Han Dynasty (206 years ago), Yandao County was established, which governed Yingjing River and Chegang River (Ling Bing) basins, with Qingyi River in the north and Daxiangling watershed in the south. (In 593 AD, the Liwan section in the upper reaches of Chegang River merged with Hongya Town in Dan Ling to form Hongya County. In 605 AD, the capital was moved to Yushiyang (Duoying) in Yandao County. In 620, Yingjing River Basin was set aside and Yingjing County was established. 1729 Yandao County was changed to Ya 'an County).
The family of King Yan of Chu brought advanced smelting technology from Chu State, and the whole territory of Yandao County became a Daye factory. The crown block is walking in the clouds, and the mines are all over the mountains. Copper smelting, lead smelting and silver extraction have become the main businesses of the county, and Mao Cangwen (Mao million), flower girl, Xiang Chunshan, and how have all become the man of the hour in this land, which has been praised from generation to generation. After Yandao County moved to Qingyi River, the upper section of Chegang River Basin belonged to Hongya, so people called it Chegang County, and Chegang County became another name of Hongya County.
The area is rich in mineral resources, including dense bamboo forests, clear streams and waterfalls, and the ruins of urban corridors, including Banbian Street, Yinyang Pool (charming swing), Sanpiaoshui (Deng Tong's money casting place), Wudaogou, Daozuoyan, Shuanglong Waterfall, Token Mountain, Baichanggou, Pengqianyan, Dragon and Tiger Swing, Crossbar, Wangxiangtai, Demon Stack and so on.