The relic of heroic martyr Kim Dong - the first Vietnamese infantry rescue team leader (today's Young Pioneer Brigade in Ho Chi Minh City) is located in the Pac Bo National Monument complex. Kim Dong - Kim Dong's real name is Nong Van Den, born in 1929 in Na Ma village, Truong Ha commune, Ha Quang district. As a clever, nimble Nung ethnic, he joined the Save the Youth League founded by Duc Thanh on May 15, 1941 in Na Den, Na Na village, to become captain. In August 1942, Kim Dong was honored to meet President Ho Chi Minh at the Nam En Cave, and the heroic newcomer, 14 years old, died heroically while on duty. To protect the secret, help the comrades officers in Vietnam timely spread to the mountain.