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.
Lantian County Lantian County () is under the administration of Xi'an, the capital of Shaanxi province, China. It is the easternmost and second-most spacious (after Zhouzhi County) of the 13 county-level divisions of Xi'an. The county borders the prefecture-level cities of Weinan to the northeast and Shangluo to the southeast, Lintong District to the north, Chang'an District to the west, and Baqiao District to the northwest.