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.
Long Xuyên Long Xuyên (] ) is the provincial city and capital city of An Giang Province, in the Mekong Delta region of south-western Vietnam. It is located at approximately 1,950 km south of Hanoi, 189 km from Ho Chi Minh City, and 45 km from the Cambodian border. The population of Long Xuyên city is over 368,376 (2013), with an area of only 106.87 km².