Salar de Uyuni Eastern Circuit Bolivia
World's largest salt flat circumnavigation
The eastern approach to Salar de Uyuni takes you across 12,000 square kilometers of crystalline salt deposits that formed when ancient Lake Minchin evaporated 40,000 years ago. The route starts at Uyuni town and heads northeast across the perfect white expanse toward Tunupa volcano, where you’ll navigate salt islands covered in thousand-year-old cacti. The most challenging section crosses the Río Grande de Lípez where flash floods can strand vehicles for days on the salt-crusted islands.
This is expert-level terrain requiring GPS navigation, spare fuel, and emergency water — cell service doesn’t exist for 200 kilometers. Travel only during dry season (May-October) when the salt crust can support vehicle weight. Carry tire pressure gauges; the salt eats rubber and corrodes everything metal. You’ll camp under stars so bright they cast shadows while surrounded by the most alien landscape on the continent.
Trail Specs
| Difficulty | Expert |
|---|---|
| Trail Type | Overland Route |
| Surface | Salt |
| Features | High Altitude, Remote, Scenic |
| Length (miles) | 186 mi / 299 km |
| Duration | 3-4 days |
| Max elevation (ft) | 12100 ft |
| Best season | May-October |
| Minimum vehicle | 4WD high clearance with spare fuel |
| Nearest town | Uyuni, Potosí |
| Land manager | SERNAP Bolivia |
| Permit required | Yes |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
What's the minimum vehicle setup needed to run the Salar de Uyuni Eastern Circuit?
True 4WD with high clearance is non-negotiable — this isn't a trail you nurse a stock crossover through. You need a proven low-range system, all-terrain tires, and a full-size spare minimum. Most rigs running this carry two spares given the salt and volcanic rock terrain.
When is the trail impassable and what makes the wet season so dangerous?
Avoid November through April. Seasonal rains flood the salt flat, turning it into a shallow lake that hides soft spots, destroys electronics from salt-water intrusion, and can swallow a vehicle quickly. May through October is the only window worth running this route.
Do I need a permit to drive the Eastern Circuit and who issues it?
Yes, permits are required — SERNAP Bolivia manages access to the protected areas along this route including Reserva Nacional de Fauna Andina Eduardo Avaroa. Sort paperwork in Uyuni before departure; enforcement exists at checkpoints and fees apply per vehicle and per person.
What's the hardest section and what makes it technical at expert level?
The volcanic rock and high-altitude desert sections south of the flat are where most rigs take damage — sharp volcanic scree shreds tires and the terrain is unforgiving and unmarked. Combine that with 12,100-foot elevation, zero cell service, and nearest recovery being potentially a full day out, and a single mechanical failure becomes a serious survival situation.
How much fuel do I need to carry and where's the last reliable fill-up before starting?
Fuel up completely in Uyuni — it's the last reliable source before you're on your own for 186 miles across remote terrain over 3-4 days. Most experienced drivers on this circuit carry an additional 20-40 liters in jerry cans; there are no fuel stops on route and no bailout options once you're deep into the circuit.
Trail track
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