Area: 8,331.2 sq. km
Population: 746.4 thousand habitants (2006)
Capital: Lang Son City.
Districts: Trang Dinh, Van Lang, Van Quan, Binh Gia, Bac Son, Huu Lung, Chi Lang, Cao Loc, Loc Binh, Dinh Lap.
Ethnic groups: Viet (Kinh), Tay, Nung, Dao...
Location: Tham Thanh Grotto is situated in Tam Thanh Ward, LangSonCity, LangSonProvince.
Characteristic: There is a poem by Ngo Thi Si carved on the grotto wall praising the magnificent natural beauty of the area.
Location: MauSonMountain is located in Loc Binh District, about 30km from LangSonCity to Mau Son Rerort.
Characteristic: With the wind whistling up and the cloud floating down, the sky seems within hands reach. The panorama from the highest peak in Lang Son region is like a Chinese ink drawing.
Location: Nhi Thanh Grotto is situated in Nhi Thanh Street, approximately 1km from the LangSonCity, LangSonProvince.
Characteristic: Nhi Thanh is one of the most beautiful grottoes in LangSonProvince.
Time: 22nd to the 27th day of the first lunar month.Place: LangSonCity, LangSonProvince.
Objects of worship: Than Cong Tai, a head of district who had merit of opening Ky Lua Market to trade with Chinese from the 17th century.
Characteristics: Palanquin procession from Ky Cung Temple to Ta Phu Temple; sli songs of the Nung, luon songs of the Tay.