Which borders Vietnam, Hekou Yao Autonomous County or Lhasa City?
Lhasa (prefecture-level city) Lhasa City is a prefecture-level city, formerly a prefecture until 7 January 1960, one of the main administrative divisions of the Tibet Autonomous Region of China. It covers an area of 29274 km2 of rugged and sparsely populated terrain.
Dongkou County Dongkou County () is a county in the Province of Hunan, China, it is under the administration of Shaoyang City. Located in the midwestern Hunan, the county is bordered to the northeast by Longhui County, to the northwest by Xupu County and Hongjiang City, to the southwest by Suining County, to the southeast by Xinning County. Dongkou County covers 2,200 km2 , as of 2015, it had a registered population of 870,900 and a permanent resident population of 784,500. The county has 11 towns, 9 townships and 3 subdistricts under its jurisdiction, the county seat is Wenchang Subdistrict (文昌街道).