Lang Son Province is located in the northeastern region of Vietnam, bordering China. It is known for its stunning landscapes, including mountains, valleys, and rivers. The province has a rich cultural heritage, influenced by various ethnic groups, and is famous for its traditional markets and local cuisine. The capital city of Lang Son is also named Lang Son, which serves as a key trade hub between Vietnam and China. The province is home to several historical sites, such as the Tam Thanh Cave and the Dinh Luong Temple, attracting both tourists and researchers interested in its history and culture.