The three provinces in the northeast are Heilongjiang, Jilin, and Liaoning, the northern border is Inner Mongolia, the northwest is Shaanxi, Gansu, Ningxia, Qingxin, and the southwest is Tibet, Sichuan, Yunnan, Guizhou, and Chongqing. , located in the middle and lower reaches of the Yangtze River, Shanxi, Hebei, Henan, Shandong and Beijing and Tianjin, and located in the middle and lower reaches of the Yellow River.
This is recorded according to the direction.