Ker La: Driving the 26km Unpaved Ascent in Riwoche
At an elevation of 5,024m (16,482ft) above sea level, Ker La is a high mountain pass in Riwoche County, within the Chamdo prefecture of Tibet. This remote crossing connects the town of Ratsaka with Shagongxiang, running along the high ridges above the Ngom River.
| Road facts: Ker La | |
|---|---|
| Location | Riwoche, Chamdo, Tibet |
| Elevation | 5,024 m (16,482 ft) |
| Length | 26.4 km (16.4 miles) |
| Elevation Gain | 1,268 meters |
| Max Gradient | 15% |
How is the road to Ker La?
The climb starts at the junction with the G214 road. The route to the summit is 26.4 km (16.4 miles) long and is entirely unpaved. With an elevation gain of 1,268 meters, the drive is a sustained test for any vehicle. While the average gradient is 4.80%, several ramps hit a maximum gradient of 15%. The surface consists of loose gravel and high-plateau dirt, which becomes extremely unstable during the spring thaw or after rain.
Can you drive to Ker La in winter?
The pass is frequently blocked by heavy snow and ice from late autumn until early summer. At 5,024 meters, the weather is unpredictable and sub-zero temperatures are the norm. During winter, the track becomes dangerously slippery and is often completely impassable. Even in summer, you should check the local forecast in Riwoche before starting the ascent, as sudden blizzards can occur without warning.
What are the main risks on the Ratsaka-Shagongxiang route?
The primary hazards are the extreme altitude and the steep, unprotected drops. At over 5,000 meters, internal combustion engines lose about 40% of their power, making the 15% ramps very difficult to climb without low-range gearing. A high-clearance 4x4 is strictly recommended. There is no infrastructure along the route—no fuel, no medical aid, and no cell service. You must be fully self-sufficient and carry recovery gear for mud and rocks.
Logistics and Preparation
Before leaving the G214, ensure your vehicle is in top mechanical condition. The massive 1,268m climb in thin air puts immense pressure on the cooling system. Carry at least one full-size spare tire and extra fuel, as the fuel consumption will be significantly higher than on paved roads. Due to the total isolation of the Ngom River area, it is highly recommended to travel with a second vehicle and carry oxygen for the driver and passengers.
Road suggested by: Hugh Wilson