Introduction to bag-shaped cellars: More than 200 cellars for storing items have been found, among which there are many circular bag-shaped cellars with small mouths and large bottoms. Most of these cellars are scattered around the houses, and few are found indoors, indicating that the clan's means of production and living are publicly owned. This is a well-preserved and typical bag-shaped cellar cave. This bag-shaped pit is a pit where grains are stored. The walls of the cave were painted with fine loess. There is a small shallow groove at the bottom of the cave. The purpose of the small groove is unknown. The diameter of the bottom of the cellar is 1.68 meters. During the excavation, there were decayed grain shells accumulated in the cellar, which were 0.18 meters thick.