Salinas Grandes in Jujuy, a high?Andean salt desert
Published on 08/22/2026 at 17:03 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
High on the Puna plateau of northwest Argentina, Salinas Grandes in Jujuy stretches out as a blinding white salt desert framed by distant Andean ridges. At around 3,450 m (11,320 ft) above sea level, this salt flat offers a rare combination of high?altitude landscape, geometric salt crust and industrial salt extraction in one expansive setting.
A high?altitude salt sea between Jujuy and Salta
Salinas Grandes lies in the north of Argentina, shared between the provinces of Jujuy and Salta on the elevated plateau known as the Puna. The salt flat is reached by National Route 52, a paved mountain road that leaves the Quebrada de Humahuaca and climbs west via the Cuesta de Lipán pass before crossing the salt crust itself.National Route 52 from Purmamarca The closest town of note on the Jujuy side is Purmamarca, known for its coloured hills and traditional adobe houses.
Geographically, Salinas Grandes occupies more than 200 km² of former lake basin, its surface hardened by long cycles of evaporation. Official descriptions give an average altitude of 3,450 m with an arid climate and marked dry and wet seasons, a combination that produces the flat’s characteristic hard crust and occasional shallow water cover.area and altitude On the Jujuy side, the salt field falls within the district of Cochinoca and is accessible from the road where simple visitor facilities and craft stalls have developed beside the salt.
Salt crust geometry and an ancient basin
The surface of Salinas Grandes appears as a white expanse broken by a pattern of shallow depressions and fissures, formed as the salt crust dries and contracts under intense sun. In many areas the crust is thick enough to support vehicles, and local guides lead visitors out from the roadside to areas where geometric slabs and the layered structure of the salt are clearly visible.the salt crust above sea level The white surface can stretch to the horizon in all directions, making scale and distance hard to judge.
The basin beneath Salinas Grandes was created by tectonic and volcanic processes during the late Cenozoic, when water carrying dissolved minerals accumulated in enclosed depressions. Over millions of years repeated filling and evaporation left extensive layers of halite and other salts, forming one of Argentina’s major salt fields.sea?basin covered with salt water Regional descriptions mention sodium and potassium deposits, reflecting the industrial interest in the area alongside tourism.
Industry, craft and Andean horizons
Beyond the visitor zone beside the highway, parts of Salinas Grandes are worked for industrial salt extraction. In these areas, pools and rectangular cuttings in the crust reveal the thickness of the salt layer and expose brine beneath, showing the salt field as a working landscape as well as a visual spectacle.industrial importance for sodium and potassium Roadside stalls near the access point sell small objects carved from salt blocks, connecting visitors with the material that dominates the plain.
Standing on Salinas Grandes, the surrounding Andean foothills form a low ring beyond the white crust, their muted browns and reds contrasting with the brightness underfoot. To the east, the road drops towards the Quebrada de Humahuaca, while to the west it continues towards the Paso de Jama and the Chilean border, making the salt flat a natural pause on a high?altitude crossing of the Andes.location on the Puna plateau Vehicles park on the firm sections of crust close to the roadside, and short guided walks venture out into the open salt field where the visual emptiness and thin air define the experience.
Visiting Salinas Grandes: what travellers from Western Europe should know
- Salinas Grandes lies on National Route 52 west of Purmamarca in Jujuy, on the high plateau between the Quebrada de Humahuaca and the Andes; the paved road crosses the salt flat itself.
- The salt field is at high altitude, around 3,450 m (11,320 ft), with strong sun and exposed terrain; short walks on the crust take place over flat but uneven salt surfaces.
- In Jujuy the official language is Spanish and the currency is the Argentine peso.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
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Frequently asked questions about Salinas Grandes
Where is Salinas Grandes?
Salinas Grandes is a high?altitude salt flat in northwest Argentina, shared between the provinces of Jujuy and Salta and reached by National Route 52 west of Purmamarca.
What should visitors expect on a trip to Salinas Grandes?
Visitors encounter an exposed white salt crust at around 3,450 m (11,320 ft), with short guided walks out onto the flat surface and roadside stalls selling simple crafts made from salt.
What makes Salinas Grandes distinctive among salt flats?
Salinas Grandes combines a vast high?Andean salt surface with direct road access, visible industrial salt workings and broad views to surrounding mountain ranges, creating a rare mix of geology, industry and landscape.
