The road to Lach La is not for the faint of heart

Lach La is a high mountain pass at an elevation of 4.731m (15,521ft) above the sea level, located in Nangqên County, the southernmost county-level division of Qinghai province, in China.

Lach La

Set high to the north-west of the county town of Xiangdazhen, the road to the summit is totally unpaved. It’s called S315. The road is very steep, hitting a 25% of maximum gradient through some of the ramps.
The pass is 74.7 km (46.41 miles) long, running east-west from Xiangdazhen to Zhuoxiao. To drive the road without stopping will take most people between 3.5 and 4 hours.
Road suggested by: Hugh Wilson