China National Highway 215


China National Highway 215 runs from Hongliuyuan, Gansu to Yushu, Qinghai. It was originally 641 kilometres in length and ran south from Hongliuyuan towards Golmud. As part of the 2013 National Highway extension plan, it was extended to Yushu via Qumarlêb County and Zhidoi County, superseding part of Qinghai provincial highway S308.

Route and distance