Cao Bang is a province in the Northeast region of Vietnam. The mountainous province is bounded on the west by Tuyen Quang province and Ha Giang province and on the south by Bac Kan province and Lang Son province. In addition, the north and the east of the province border China, Quang Tay province in particular. It has 12 districts and a country town whose name is also Cao Bang. The centre of the province is about 300 km to the northeast of Hanoi.