Located in the north of Vietnam, Lao Cai province is bordered by Ha Giang province in the east, An Phoi and Son La provinces in the south, Lai Chau province in the west, and Hekou Yao Autonomous County in Yunnan province of the People's Republic of China in the north, and the border with Yunnan province is 204 kilometers long.In October 1991, Lao Cai province was separated from Hoang Lien Son province of Vietnam, and it is a border city with a lot of commercial activities.