Lạng Sơn Province

Lạng Sơn Province (Vietnamese: Tỉnh Lạng Sơn) is a province of Vietnam. It is located in the North Eastern Region and is bordered by Cao Bằng Province in the north, Bắc Kạn Province and Thái Nguyên Province in the west, Bắc Giang Province and Quảng Ninh Province to the south, and China to the northeast. Its capital and largest city is Lạng Sơn, located in the centre of the province. The province is known for its rugged hills near Hữu Lũng, and its railway which joins the Chinese railway network.

Geography
Lạng Sơn Province has very hilly terrain that covers almost the entire province. The province's highest point is Mount Mẫu Sơn, located just east of Lạng Sơn town and close to the Chinese Border, at 1600m.

In the south-west of the province near the town of Hữu Lũng, there are some steep and rugged karstic hills, which are a popular spot for hiking and exploration.