Which borders Vietnam, Hekou Yao Autonomous County or Lhasa City?
Hekou Yao Autonomous County The Hekou Yao Autonomous County () is an autonomous county in the southern part of the Yunnan province of China. It is part of the Honghe Hani and Yi Autonomous Prefecture and borders the northern Vietnamese town of Lào Cai. It was apparently known as Zhongcheng () during the Tang dynasty.
Hà Giang Hà Giang (  ) is a city located on the banks of the Lô River in the north-east region of Vietnam. It is the capital of Hà Giang Province. The city has an area of 135.33 km² and a population of 71,689 inhabitants. The population is composed of 22 different ethnicities, of which 55.7% are Kinh and Tày people.