Uyuni Salt Flat Map, Facts, & Elevation

Now one of the key stops on Salar de Uyuni tours, it’s become something of a tourist trap. The area was once covered by a huge saltwater lake, which dried up some 30,000–40,000 years ago. The focal point of any Salar de Uyuni tour is, of course, the world’s largest salt flat. Known locally as Salar de Uyuni, the salt flats are part of the Altiplano, a vast plateau that extends for 965 km from southern Peru to the southwestern corner of Bolivia. As the largest salt flat on Earth, the Salar de Uyuni is widely regarded as one of the most effective natural calibration sites for Earth-observing satellites. Multiple fatal incidents have occurred at the salt flat as a result of poorly maintained vehicles, untrained drivers, speeding, a disregard for the inhospitable conditions, and lack of regulation for tour companies. It’s always the offseason somewhere. We’ve compiled the definitive list of the best places to visit – all year long – when the crowds dissipate and the local vibe comes to life. Durable and waterproof, with a handy slipcase and an easy-fold format, Lonely Planet's country maps are designed to let you explore with ease. Pocket Guides are compact guides for short trips that offer the best local experiences. For travelers looking to immerse themselves in local culture and language essentials.

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Learning about the cultural aspect of Uyuni will enhance the experience of your trip to be not only a trip of sightseeing, it will be a good experience of humanity. You may also observe how the salt is extracted, processed and rolled into souvenirs, which is an ideal method of helping communities locally. Excursion to the nearby villages such as Colchani where people make their living by making artisan salt and craft through the traditional ways. Other than its natural beauty, the area surrounding Salar de Uyuni is very culturally diverse. The thermal waters are delightfully warm and while you’re bathing you can soak up the beautiful scenery. While you might not fancy stripping off when it’s -10°C, you absolutely won’t regret it if you do – trust me! The hot springs of Polques are the perfect place to take a break and relax. Utilising the abundant material to hand, the innovative locals created entire buildings out of salt bricks. (Note that Incahausi can become inaccessible in the wet season due to flooding.) In the middle of the salt wilderness, this tiny oasis is covered in towering cacti.

Walking across the salt flats allows you to truly appreciate the scale of the landscape and feel the texture of the salt crust underfoot.
South America has stunning salt flats, but Salar de Uyuni is the world’s largest at about 4,674 sq mi (12,106 sq km).
The mission focused on calibrating radar-based measurements of surface topography.
I’ve done the 3-day Salar de Uyuni tour twice with different agencies, eight years apart, in 2017 and 2025.
During the rainy season, water can fill parts of the salt flat, creating a stunning mirror-like effect.
There is some variation in which hot springs are included in Uyuni tours, depending on the agency.
The world's largest salt flat sits at a lofty 3653m (11,985ft) and blankets an amazing 12,000 sq km (4633 sq miles).

We chose a Spanish-speaking tour, and our basic Spanish was more than enough. It’s worth mentioning that you will spend most of your time in the car. So, below are a few points to know before choosing a tour. I recommend booking in person, as it’s usually cheaper. It is possible to visit the salt flats independently and while I was there I saw people camping with bikes! In the dry season there is no water layer, instead you can observe the hexagonal salt tiles that form on the surface. If you’re only interested in seeing the salt flat itself and snapping some awesome perspective photos, then the one-day option may be for you.

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Uyuni itself offers little of interest and so it’s best to avoid spending more time here than necessary. Salar de Uyuni sits at 3,656 m.a.s.l. and some parts of the tour reach altitudes of above 4,500 m. Many travellers begin their tour in Uyuni and then continue on to San Pedro de Atacama in Chile. When booking a tour you’ll have the option of taking a round trip or including onward travel at the end of the tour.

High Altitude

On our first tour in 2017, although it wasn’t windy at all, the lake had a greenish tint. In the morning, when most tours come to Laguna, you won’t see the emerald green color. Laguna Colorada, or the Red Lagoon, is a shallow salt lake home to thousands of flamingos. I don’t think this stop was included in tours eight years ago. Another salt flat close to the Chilean border, Salar de Chiguana is a little sister of Salar de Uyuni.

Main Timer setup

Across more than 10,000 square kilometers, the elevation difference is barely around one meter.This is almost impossible in natural landscapes. The foundation of Salar de Uyuni goes back to a sequence of lakes that filled the Altiplano basin during the Pleistocene.In the past, huge inland lakes—like the prehistoric Lake Minchin—covered the region. Lisa is a writer and traveller who left her nine-to-five in London for life on the road. There are ATMs in Uyuni but these are not always reliable so it’s best to bring some extra cash from wherever you are travelling. Note also that Incahausi island is sometimes inaccessible during the rainy season. Some people are keen to observe the mirror effect on the salt flat. Aim to begin your tour the same day, otherwise you’ll have a whole day to spinmaya no deposit bonus code waste.

Bolivia Salt Flats (Salar de Uyuni) – The Complete Visitors’ Guide

Warm clothes – the altitude is high, and it gets quite cold at night, and below zero in winter months (June to August). If you don’t like rain and prefer dry weather, visit between May and November. But keep in mind that even in this season, there is no guarantee you will see the reflective effect. Unfortunately, our tour didn’t take us right to the lagoon; we could only see it from far away. On 2025 tour, it was very windy, and Laguna Verde had a bright green color. So there is no guarantee the lake will be green when you come there.

The Salar’s visual magic is not random—it’s atmospheric physics.
The lithium in the salt flats contains more impurities, and the wet climate and high altitude make it harder to process.
One must-do activity in Bolivia is exploring the Salar de Uyuni, the world’s largest salt flat.
We visited these hot springs on our 2017 tour.
Take altitude seriously, and make sure you acclimatize properly before a tour to fully enjoy the beauty of Salar de Uyuni.
It’s also possible to take a tour starting in Tupiza – a great option for those coming from Argentina.

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Collectively, these features make the Salar de Uyuni approximately five times more effective for satellite calibration than the surface of the open ocean. Salar de Uyuni is a popular tourist destination, and consequently a number of hotels have been built in the area. Because of its location, large area, and flatness, the Salar is a major car transport route across the Bolivian Altiplano, except when seasonally covered with water. However, except for January, even in the rainy season the number of rainy days is fewer than 5 per month. It is covered with a solid salt crust varying in thickness between tens of centimeters and a few meters. Lacustrine mud that is interbedded with salt and saturated with brine underlies the surface of Salar de Uyuni. It’s basically a natural self-leveling surface. Over time, as climate changed, these lakes expanded during wet periods and shrank dramatically during dry ones. For photographers, scientists, engineers, and travelers, Salar de Uyuni is a place where nature behaves almost unreal. What we see today as a white desert is the long-term memory of ancient lakes, evaporation cycles, mineral precipitation, and climate shifts. Today, she spends her time solo backpacking, navigating through life and unfamiliar streets.