China National Highway 312 (312国道), also referred to as Route 312 or The Mother Road, is a key east-west route beginning in Shanghai and ending at Khorgas, Xinjiang in the Ili River valley, on the border with Kazakhstan. In total it spans 4,967 km (3,086 mi), passing through Jiangsu, Anhui, Henan, Shaanxi, Gansu before ending in Xinjiang. Besides Shanghai, cities of note on the route include Suzhou, Wuxi, Nanjing, Hefei, Xinyang, Nanyang, Xi'an, Lanzhou, Jiayuguan and Ürümqi.
The G40 Shanghai–Xi'an Expressway has replaced National Highway 312 as the main route between those two cities.
National Highway 312
|Length||4,967 km (3,086 mi)|
|China National Highways
|Route and distance|