China National Highway 317 in Tibet

China National Highway 317 (G317) runs broadly west to east from ChengduSichuan to NaquTibet. It is 2,028 kilometres in length. As of 2017, Highway 317 passes through the highest vehicular tunnel in the world in the Chola Mountains of Dêgê County.

National Highway 317

Route information
Length 2,028 km (1,260 mi)
Major junctions
From Chengdu, Sichuan
To Naqu, Tibet
Highway system
China National Highways: National Trunk Highway System, Transport in China

Route and Distance

Place Location (km)
Chengdu, Sichuan 0
Pi County, Sichuan 20
Dujiangyan City, Sichuan 54
Wenchuan County, Sichuan 149
Li County, Sichuan 206
Barkam County, Sichuan 394
Zhaggo County, Sichuan 661
Garzê County, Sichuan 756
Dêgê County, Sichuan 960
Jomda County, Tibet 1070
Qamdo County, Tibet 1298
Riwoqê County, Tibet 1403
Dêngqên County, Tibet 1546
Baqên County, Tibet 1782
Sog County, Tibet 1812
Nagchu County, Tibet 2043