China National Highway 318
China National Highway 318 is a trunk road in China that runs east-west from Shanghai in East China to Zhangmu on the China-Nepal border. It is the longest of the China National Highways at in length and runs west from Huangpu District, Shanghai towards Zhejiang, Anhui, Hubei, Chongqing, Sichuan, and ends in Tibet Autonomous Region. From Lhasa to Zhangmu it is also called Friendship Highway.
From Markam to Zogang it shares the highway with G214.
At the Sino-Nepal Friendship Bridge, it connects with the 115 km long Araniko Highway
to Kathmandu.
File:National Highway 318 kilometre stone at K4716+0.jpg|thumb|China National Highway 318 between Doilungdeqen and Qüxü County|alt=|291x291px
The route is popular with tourists due to the wide variety of biomes, cultural areas, and natural scenery.