A steep (11.79%) hairpinned road to Lake Gongga

Gongga Co is a high mountain lake at an elevation of 4.642m (15,229ft) above the sea level, located in Lhozhag County, a county of Shannnan in the south-east of the Tibet Autonomous Region, in China.

Lake Gongga

Located in the Himalayas range, the unpaved road to the summit is very winding and curvy. It runs from the village of Sangdong to the Bhutanese border. 4x4 vehicle recommended. It’s a high mountain road topping out at 4.991m (16,374ft) above the sea level near its end. Ideal time to travel is daylight. Not advised night drive. Starting from Sangdong, the road to the lake is 5.17 km (3.21 mi). Over this distance the elevation gain is 610 meters. The average gradient is 11.79%.
Road suggested by: Hugh Wilson