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.
Xinzhai, Mengla County Xinzhai Village () is a small settlement in Manla district, Mengla County, Xishuangbanna prefecture, Yunnan province, China, only 8 km from the border with Laos. Trade across the border is strictly controlled, and foreigners are not allowed to cross into either country at this point. The dirt highway running north-south through Xinzhai features an important Chinese police checkpoint. The only road apart from the highway runs to the border.