Introduction to the stone barracks: The stone is 9.3 meters long, 9.5 meters wide, 1.4 meters thick and weighs more than 300 tons. It is arch-shaped, forming a natural stone house, 2.7 meters high, 5.5 meters deep, and 7.2 meters wide. The stone house covers an area of 40 square meters and can protect against wind and rain. Soldiers from the Northeast Anti-Japanese Allied Forces of the 4th Regiment of the 2nd Division and 4th Regiment of the 1st Army of Yang Jingyu once stationed here, and the traces of their life back then are still vaguely visible.