Introduction to the Warring States Well Type Archery Storehouse: It has important archaeological value. It is located at the lower end of the city wall on the right side of the Cidong Gate of Hangu. It is a 0.9-meter-diameter shaft kiln-type weapons storehouse. It was an arrow storehouse for the gatekeepers to store weapons during the Warring States Period. The arrow warehouse is like a dry well, in which there are bundles of arrows, about 1 cubic meter. The arrowheads are made of copper, and the arrow shafts are made of iron. They are very light and have been rusted together and cannot be separated.