[Shaanzhou Dikengyuan] An outstanding example of raw earth building Shaanxi is dry and drier, and frozen and frozen. The hurricane is bitter and unsuitable for human habitation, and the emergence of the pits has solved these problems. Built according to local conditions, it has broadened the human living space and enriched the Yellow River culture. The underground cave dwellings of the Loess Plateau in China have no bricks and tiles. The ventilation, temperature and temperature adjustment can be solved in a natural way. Today, the construction skills of the pits have been included in the national intangible cultural heritage protection list.