"The Border Historic Site of 1950 is located in Na Lan, Duc Long Commune, Thach An District, about 60 km from Cao Bang City, along the route of No. 4. Bao Dong Mountain (also known as Mount Lang) a historical relic associated with the activities of President Ho Chi Minh.Nang Bao Nong village in Duc Long commune, Thach An district, 60km from Cao Bang city along the highway 4. Ho Chi Minh Bay selected for observation , Commander of Dong Khe Campaign in 1950. Dong Khe Commune: Located in Dong Khe Town, Thach An District, this is a historical commercial use. Dong Khe, Dong Khe Reunion with the same examples that you have experienced such as: L a Van Cau, Ly Viet Muc, Tran Cu ... express the full power of the whole g, the whole people in the war ".