Le Loi’s Stone Stele is also known as the ancient stone stele named Hao Trang carved on a huge rock on a mountainside next to Thac Bo in Hao Trang commune, Da Bac district. On a good day of lunar March in the Year of the Mouse (1432), the Fifth Year of Thuan Thien, en route back from the battlefield, King Le Thai To composed a poem for generations to come, has formed the basis of the moral philosophy of fighting against an enemy, which can be rendered as follows:

The main materials include indigo dyed cotton and coloured silk (which can be replaced with wool), looms and go plates.

Cho Cave is a national archaeological relic lying in Hui hamlet, Cao Ram commune, Luong Son district, Hoa Binh province, 42 km from Hoa Binh City to the North-East and 40 km away from Hanoi capital.

Mo Luong Cave lies inside Pu Kha Mountain in Mai Chau town and Chieng Chau commune, Mai Chau district. The main entrance to the cave is in Mai Chau town and the subordinate entrance is along the water current in Chieng Chau commune.

In 1926, a French archaeologist, Madelene Colani, conducted a survey of caves and grottoes in the limestone mountain valley of Hoa Binh province. There, Colani carried out the excavation of 20 archaeological sites, discovering a rich collection of objects, the majority of which were stone tools made by striking or paring stream cobbles in a rudimentary way. After the excavation results, in her research work entitled “Stone Age in Hoa Binh Province” published in 1927, Colani introduced the term “Hoa Binh Culture” to name this culture and it was officially accepted by scientists at the first Far East Prehistoric Institute Conference held in 1932.