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.
Vĩnh Châu Vĩnh Châu is a county-level town ("thị xã") of Sóc Trăng Province in the Mekong Delta region of Vietnam. In August 25, 2011, Vĩnh Châu became a town and had a population of 163,918. The town covers an area of 473 km².