Zhanggu
Zhanggu lies in the Gyelrong mountain country between the Tibetan plateau and Sichuan. Steep valleys and passes connect communities whose fields and pastures occupy different elevations.
In the Qing period, several hereditary chiefs governed parts of the wider area now known as Danba. After the Jinchuan campaigns, the Qing established Zhanggu tun in 1776 as part of a new administrative arrangement.