How dangerous is the 5,570m high Wuersisan Radome Road in China?
The Wuersisan Radome Road is one of the highest and most restricted vehicle tracks on Earth, reaching a staggering elevation of 5,570m (18,274ft) above sea level. Located in the southwestern part of Hotan Prefecture, in the Xinjiang Autonomous Region, this unpaved route cuts through the heart of the Aksai Chin, a high-altitude desert on the disputed border between China and India. This is a 277-kilometer journey through a sensitive military zone where the extreme altitude, the lack of infrastructure, and the geopolitical tension make it one of the highest mountain roads of China.
| Road facts: Wuersisan Radome Road | |
|---|---|
| Location | Hotan Prefecture, Xinjiang, China |
| Elevation | 5,570 m (18,274 ft) |
| Length | 277 km (172 miles) |
| Max Gradient | 13% |
| Access | Strictly Restricted / Military Zone |
How long is the unpaved track from Wuersisan to Radome?
The road stretches for 277 km (172 miles) through a desolate and barren landscape where the earth is a mix of loose shale, sand, and permafrost. Running from Wuersisan to the military outpost of Radome, the track follows a north-south axis through some of the most remote coordinates on the planet (35.305070, 78.310400). This is not a maintained highway; it is a tactical route where the 277 kilometers feel twice as long due to the vibration of the "calamina" (washboard) surface and the need to navigate around sections washed out by seasonal snowmelt or blocked by falling rocks from the surrounding peaks.
What are the driving hazards of the Wuersisan Radome Road?
The primary hazard is the combination of extreme gradients and total isolation. Some ramps on this route hit a maximum gradient of 13%, which at an altitude of over 5,500 meters, is a brutal test for any internal combustion engine. A high-clearance 4x4 is absolutely mandatory, as the road surface is prone to sudden collapses and deep silt patches that can swallow wheels. Beyond the terrain, the geopolitical situation adds a layer of danger: this is a highly conflictive and militarized area. Unauthorized access can lead to immediate detention by military patrols, and there is zero civilian infrastructure—no fuel, no water, and no medical help for hundreds of kilometers.
Why is the 5,570m altitude a threat to drivers and vehicles?
At 5,570 meters, you are driving at an elevation where human life is barely sustainable without pressurized oxygen. For the driver, the risk of High Altitude Cerebral Edema (HACE) is real; a single mistake in judgment on a 13% ramp can be fatal. For the vehicle, the thin air means the engine will lose more than 50% of its power. Cooling systems are also under extreme pressure because the boiling point of water is significantly lower at this altitude, meaning your radiator can boil over even in sub-zero temperatures. Carrying extra fuel in jerricans is vital, as the engine's efficiency drops to almost half while struggling through the high-altitude passes.
Is the Wuersisan Radome Road open in winter?
The road is effectively impassable for most of the year. Winter temperatures in the Hotan Prefecture highlands can drop to -40°C, and the relentless winds create massive snowdrifts that bury the 277 km track under meters of ice and snow. Even in the short summer window, the weather is unpredictable. Sudden blizzards can strike the 5,570m summit in minutes, turning the dry dirt into a lethal slurry. If you are forced to stop due to weather or a mechanical failure, you are in a survival situation in one of the most hostile environments on the planet. You must be fully self-sufficient with thermal gear, emergency food, and a way to melt snow for water if you get trapped in this remote sector of China.
Road suggested by: Hugh Wilson