Thái Nguyên
Thái Nguyên borders six provinces: Bắc Kạn, Vĩnh Phúc, Tuyên Quang, Lạng Sơn, Bắc Giang, Hanoi. Thái Nguyên is the gateway for socio-economic exchange with the Red River delta. It is 50km from Noi Bai international airport, 200km from the Chinese border, 75km from the center of Hanoi and 200km from Hai Phong. The exchange is carried out via road, rail and waterways in the province Main water features include the Công River and Núi Cốc Lake.