Sichuan–Tibet Highway — Chengdu to Lhasa via the G318 High Altitude Corridor
The highest overland highway on the planet.
Truckers, pilgrims, cyclists, and overlanders have been grinding the G318 for decades. It leaves Chengdu flat and warm, then climbs relentlessly through the Erlang Mountain tunnel, past the Luding Bridge where Communist forces crossed the Dadu River in 1935, up through Kangding into Tibetan territory, across a series of 4,000-metre-plus passes — Zheduo Shan, Dongda La, Bangda — and finally descends into Lhasa through the Nyingchi river valleys. Passes get slammed by snow from October through May. The stretch from Batang into Tibet proper is consistently the most brutal: narrow ledge road, thousand-metre drops, and rockfall zones with no shoulder and no guardrail. Dongda La at 5,130 metres is the knife-edge marker that tells you whether your vehicle and your lungs are up to it.
You need a Tibet Travel Permit (TTP) plus an Alien’s Travel Permit for restricted counties — organise these through a licensed Chinese travel agency before departure; independent overlanders cannot obtain them at the border. Foreign nationals must hire a local guide and licensed vehicle on the Tibet side, which changes the character of the drive significantly from Markam onwards. Best season is June through September. The G318 is a fully sealed highway for most of its length, but landslides, ice, altitude sickness, and permit bureaucracy make it no joke. A vehicle that handles altitude well and a satellite communicator are essential. What you get is the most dramatic road journey on earth, full stop.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Overland Route, Scenic Drive |
| Surface | Dirt, Gravel, Mixed |
| Features | Camping, High Altitude, Historic, Remote, Scenic |
| Length (miles) | 1305 mi / 2100 km |
| Duration | 10-14 days |
| Max elevation (ft) | 16831 ft |
| Best season | June-September |
| Minimum vehicle | High-clearance 4WD with altitude capability |
| Nearest town | Kangding, Sichuan |
| Land manager | Tibet Autonomous Region Tourism Development Department / Ministry of Public Security (Permit Authority) |
| Permit required | Yes |
| Cell service | Spotty |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | Tibet Travel Permit info |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock Land Cruiser or lifted 4Runner handle the G318, or do I need a purpose-built rig?
A stock high-clearance 4WD like a Land Cruiser 200 or Prado can complete the route, but you need a mechanically sound vehicle — breakdowns in remote Tibetan plateau sections can mean a very long wait. Skid plates, a reliable spare, and a cold-weather-rated fuel system matter more than a lift kit at these elevations.
Is the G318 driveable outside of June–September?
Outside peak season the route becomes serious business — high passes like Sejila Mountain see snow closures from October through May, and winter driving above 5,000m with ice and no support infrastructure is genuinely dangerous. Some sections may be accessible in shoulder months (May, October), but check current pass conditions with local contacts before committing.
What permits are required to drive this route as a foreigner?
Foreign nationals need a Tibet Travel Permit (TTB) at minimum, plus an Alien's Travel Permit (ATP) for restricted prefectures along the route — these are non-negotiable and enforced at checkpoints. You cannot self-drive Tibet as a foreigner; Chinese regulations require you to book through a licensed agency, use a designated Tibetan driver or guide, and have permits in hand before entering TAR.
What's the hardest section of the G318 and what should I actually expect?
The stretch between Markam and Bomi — crossing the Sejila Pass at roughly 4,700m — combines steep loose switchbacks, frequent landslide debris, and unpredictable weather that can dump snow any month of the year. Add in the Pailongzangbu Canyon section with its narrow cliff-edge road, and this 400km chunk demands full attention, slow speeds, and no rushing.
How far apart are fuel stops, and is dispersed camping realistic on this route?
Fuel is available in major towns like Kangding, Litang, Batang, Markam, Bomi, and Nyingchi — gaps can stretch 200–300km on plateau sections, so carry a jerry can as backup. Dispersed camping on the Tibetan plateau is broadly possible in open areas away from towns and monasteries, but camping near border zones or military areas (which aren't always marked) can cause serious problems — ask locals before pitching.
Trail track
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