Ruta Provincial 21 Salina Grande Circuit
Salt flat mirrors at 12,300 feet in Puna wilderness
At 12,300 feet above sea level, Salina Grande stretches like a white mirror across the Puna de Jujuy, accessible via Ruta Provincial 21 from San Salvador de Jujuy. This remote salt flat circuit demands respect for altitude and weather — the bone-dry air and sudden temperature drops can shut down unprepared rigs. The route passes through Susques village before hitting the main salt pan, where the track becomes little more than tire marks across crystallized terrain that can shift after rare rain events.
Moderate difficulty with extreme altitude considerations — stock 4WD minimum, but low-range and good tires essential for salt traction and rocky approaches. Fuel up in Susques; no services for 200+ kilometers. April through October offers the most stable weather, avoiding summer rains that turn salt into impassable mud. The payoff is pure silence across Argentina’s third-largest salt flat, with flamingo colonies and vicuña herds against backdrop peaks exceeding 20,000 feet.
Trail Specs
| Difficulty | Moderate |
|---|---|
| Trail Type | Overland Route |
| Surface | Salt|Dirt|Rock |
| Features | High Altitude, Remote, Scenic, Wildlife |
| Length (miles) | 78 mi / 125.5 km |
| Duration | 1-2 days |
| Max elevation (ft) | 12300 ft |
| Best season | April-October |
| Minimum vehicle | Stock 4WD high-clearance |
| Nearest town | Susques, Jujuy |
| Land manager | Provincia de Jujuy |
| Permit required | No |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Can a stock Hilux or Patrol handle this route without modifications?
Yes — any stock 4WD with genuine high clearance handles the salt, dirt, and rocky sections fine. Air down to around 28 PSI on the salt flat sections to protect your sidewalls on the crusted edges.
Is the route accessible in winter or during the wet season?
Stick to April through October. The Puna wet season (November–March) turns dirt sections into deep mud and can flood the salina approach, making the circuit impassable. Snow at 12,300 ft is a real risk outside that window.
Do I need permits or pay any fees to drive Ruta Provincial 21 and cross the salina?
No dedicated overland permit is required. The route runs through Provincia de Jujuy jurisdiction — no entry fee, no checkpoint sign-in. Carry your vehicle documents and passport; Gendarmería Nacional checkpoints operate in the broader Puna region.
What's the hardest section of this circuit and what actually makes it technical?
The rocky transition zones where the salt crust meets the surrounding quebradas are the most demanding — uneven rock shelves and soft salt edges can grab a tire unpredictably. It's not extreme, but at 12,000+ ft, altitude slows your reaction and your engine, so don't rush it.
Where do I fuel up before leaving, and is there water on the route?
Susques is your last reliable fuel stop — top off there, no exceptions. There is no potable water on the 125 km circuit; carry all drinking water for the full 1–2 days. Dispersed camping on the salina fringe is possible but bring everything you need, cell service is zero out here.
Trail track
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