Sichuan–Tibet Highway — Batang to Markam via the Jinsha River Canyon and Tibetan Plateau Edge
Drop to the Yangtze, climb into Tibet.
The G318 between Batang and Markam crosses the Jinsha River — the upper Yangtze — at a border crossing that marks your official entry into the Tibet Autonomous Region. The canyon drops you from over 2,600 metres on the Sichuan side down to roughly 2,300 metres at the river, then immediately climbs you back up toward Markam at 3,250 metres via switchbacks that are narrow, crumbling at the edges, and frequently shared with overloaded trucks that have no interest in your right of way. Rockfall is a genuine concern April through June when snowmelt loosens the canyon walls. The 98-kilometre stretch feels longer than it is because you are never fully comfortable on it.
This segment demands a reliable, high-clearance vehicle — most overlanders tackle it in a Land Cruiser or Defender with at least a moderate lift. A TAR travel permit is non-negotiable for foreigners; obtain it in Chengdu before you leave, as enforcement on the G318 is consistent and checkpoints are regular. Fuel in Batang before departure and again in Markam. Best window is October or late May to early June before monsoon mud season locks the side roads. What you get is a front-row seat to one of the great river gorge systems on earth, and the feeling of the plateau reasserting itself as you climb toward Lhasa.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | High Clearance, Overland Route |
| Surface | Dirt, Gravel, Mixed |
| Features | High Altitude, Historic, Remote, Scenic |
| Length (miles) | 61 mi / 98 km |
| Duration | 1-2 days |
| Max elevation (ft) | 10663 ft |
| Best season | May-June, September-October |
| Minimum vehicle | High-clearance 4WD, reliable engine |
| Nearest town | Batang, Sichuan, China |
| Land manager | China Ministry of Transport / Tibet Autonomous Region Tourism Bureau |
| Permit required | Yes |
| Cell service | Spotty |
| Water crossings | No |
| Dispersed camping | No |
| Official sources | Tibet Tourism Bureau |
| 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
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Frequently asked questions
What's the minimum vehicle I need to run Batang to Markam without it being a survival situation?
High-clearance 4WD is non-negotiable — the canyon descent and gravel switchbacks will punish anything less. A reliable engine that handles sustained altitude without vapor lock is critical; turbo-diesel rigs fare better than carbureted gas engines above 10,000 ft. Bring a full-size spare and recovery gear, not just a plug kit.
When is this stretch actually drivable, and what closes it?
May–June and September–October are the sweet spots — snow and ice clear from the plateau edge and the canyon road is dry enough to hold traction. Monsoon season (July–August) brings landslides and washouts that can cut the route for days or weeks. Winter travel is possible for experienced crews but rockfall and ice on the canyon descent make it genuinely dangerous.
Do I need a permit to drive this section, and how hard is it to get?
Yes — foreign nationals require a Tibet Travel Permit (TTP) at minimum, and this border zone may also require a Military Area Permit depending on checkpoints active at the time of travel. Permits must be arranged through a licensed Chinese travel agency; you cannot apply independently. Checkpoints are real and staffed, so don't try to bluff through without paperwork.
What's the hardest section and what actually makes it hard?
The descent into the Jinsha River canyon out of Batang is the crux — steep, loose gravel switchbacks with no guardrails and a long drop on the exposure side. The road narrows and trucks share the same single track, so timing and patience matter. Once you cross the river and climb toward Markam, the grade is relentless but the surface becomes more predictable.
How far is the nearest gas between Batang and Markam, and is 61 miles close enough to not worry about it?
Fuel up completely in Batang before you leave — there is no reliable fuel stop on this 98 km stretch. Markam has fuel but supply can be inconsistent, so treat it as a bonus rather than a plan. Carry a jerry can minimum; altitude-related fuel consumption is higher than you're used to at sea level.
Trail track
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