Dàguān
Daguan lies in the mountains of northeastern Yunnan, on the old road between Sichuan and the plateau around Wumeng. The route climbed in many bends above the Guan River, crossing steep and difficult ground. In 1728, after the Qing replaced the hereditary rulers of Wumeng, a new Daguan department was established to administer the district. Its position made the mountain road and the river gorge central to local life.