History of Daocheng County

Daocheng County or Dapba in Tibetan, historically Daoba (Dàobà), is a county of western Sichuan Province, China, located in the eastern Hengduan Mountains. It is under the administration of the Garzê Tibetan Autonomous Prefecture with an overwhelmingly Tibetan population. Its latitude ranges from 27° 58′ to 29° 30′ N and longitude 99° 56′ to 100° 36′, and reaches 174 kilometres (108 mi) in north-south extent and 63 km (39 mi) in east-west width, with elevations ranging from 2,000 to 6,032 m (6,562 to 19,790 ft).

The explorer Joseph Rock departed from Lijiang in 1928 and visited Daocheng.
After the fall of Qing Dynasty, Xiangcheng and Daocheng fell into chaos. Daocheng was controlled by local chiefs (tǔtóu) centered in Daoba and the Kongkaling (贡嘎岭,; Gònggālĭng) region from 1930s to 1950s.

Source From: https://en.wikipedia.org/wiki/Daocheng_County#cite_note-2