Ha Giang is a province in northeastern Vietnam. It is located in the far north of the country and contains Vietnam's northernmost point. It shares a 270 km long border with Yunnan province of southern China and known as Vietnam's final frontier. The province covers an area of 7945.8 square km and as of 2008 it had a population of 705,100 people.
The provincial capital is connected by Highway 2 and is 320 km away from Hanoi
. The border crossing is at Thanh Thuy, 25 km from the capital, Ha Giang town. It is one of the poorest provinces of Vietnam as it has mountainous topography with the least potential for agricultural development.
The province borders China with a length of over 270 km (means: 170 miles), the border gate is known as the Thanh Thủy. In addition, there are three smaller gates namely, the Pho Bang, the Xin Man and Sam Pun.