Là ©ng Cú Flag Tower (Vietnamese: Cá»Ât cá» Là ©ng Cú) is a monument in northern Vietnam. It is located in Là ©ng Cú commune in Tuyên Quang province. The monument consists of a tower on the summit of Là ©ng Cú Peak (over above sea level). The tower is topped with a large Vietnamese flag. The monument was built to mark the northernmost point in Vietnam, although the furthest north point on the Chinese-Vietnamese border is actually located over more north.