X607, one of the highest roads in Tibet
X607 (County Road 607) is a high mountain road located in Nyima County, Nagqu, Tibet, in China.
The unpaved road is very challenging running entirely above 4.600 meters above the sea level. 4x4 vehicle required. It’s usually impassable in winters. The road is 138 km (85 mile) long. It runs south-north from the village of Jiwaxiang to X603 (County Road 603). It tops out at 5.089m (16,696ft) above the sea level. The drive offers stunning views of Gemang, Zhangnai, Ma'erxia and Ngangze lakes.