Suoi Mo Temple festival takes place on the 1st day of the 4th lunar month in Luc Nam, Bac Giang, at about 90km from Hanoi.

Suoi Mo Temples consist of Den Thuong (upper temple), below along the spring are Den Trung (middle temple) and Den Ha (lower temple) which were built during Le Dynasty. The temple has been used for worshiping the Holy Mother of the top mountain called Que My Nuong. It is believed that she was the daughter of the 16th Hung King.