The inhumane road to Gu La with 31% ramps

Gu La is a high mountain pass at an elevation of 5.075m (16,650ft) above the sea level, located in Cona County, in Shannan prefecture in southern part of Tibet Autonomous Region in People's Republic of China.

Gu La

The road to the summit is paved. It’s 23.7km (14.72 miles) long, running east-west from S202 road to Quzhuomuxiang. When the snow falls - which it does in the winter – things get tough and slippery. Always check the weather forecast before you start your journey: adverse conditions are common. The drive is very steep, hitting a brutal 31% of maximum gradient through some of the ramps. The summit is very close to lake Nariyong Co./Nara Yumco or various other spellings. 
Road suggested by: Hugh Wilson