There are five symbolic mountains in the rolling chain: Canh Mountain (symbolizing the art of ploughing fields); Dong Thoc Mountain (symbolizing prosperity); Thung Mountain (symbolizing rice mortar); Con Chuot (Mouse) Mountain (symbolizing the destruction of a paddy); and Con Meo (Cat) Mountain (symbolizing a cat lying in wait for a mouse).

On Thung Mountain, there is also a temple dedicated to the eight founding fathers of the hamlet and Canh Huong Pagoda devoted to Buddha. During the resistance against the French colonialists, the Canh Mountain held a cave where the Vietnamese army stored food, armaments and people. It also served as a shelter during air attacks. Yen Duc festivities take place annually on the 16th day of the first lunar month.