Brief introduction of national highway 307

National Highway 307 is a national highway in China, with a total length of 135 1 km. The starting point is Qikou Village, Nanpaihe Town, Huanghua City, Hebei Province (formerly Qikou Town). Now the starting point refers to Huanghua Port in Hebei Province and the end point is Yinchuan, Ningxia. Therefore, the Chinese character name is Yinqi Line and the national highway code is 307. For simplicity, it is generally called National Highway 307. National Highway 307 passes through Hebei, Shanxi, Shaanxi and Ningxia.