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Santa Laura Saltpeter Works

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Historical site
—°4
Santa Laura Saltpeter Works (Chile)

Weather…

The Santa Laura Saltpeter Works, located in the Atacama Desert, bear witness to Chile's industrial boom during the late 19th and early 20th centuries. Along with the neighboring Humberstone works, they were designated a UNESCO World Heritage site in 2005. Founded in 1872, Santa Laura was dedicated to the extraction and processing of nitrate, also known as 'white gold,' which was exported globally as fertilizer and for the production of explosives. The site features impressive remains of processing machinery, including the vertical crusher and the prominent leaching plant, as well as social facilities for the labor force. Life in these isolated 'Pampa' settlements was defined by arduous physical labor under harsh desert conditions. Following the decline of the nitrate industry in the 1930s, the plant was eventually shuttered in 1960. Today, it serves as an open-air museum that documents the history of this global industry and its profound impact on Chilean society and the surrounding landscape.

Best time to visit & climate

The most pleasant time to visit is Jan–Mar.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °C212221191716151516171819
Rain mm111001212010

📋 Practical info

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Visiting
The Santa Laura Saltpeter Works in the Atacama Desert are a former industrial site with impressive structures. The grounds are accessible via guided tours, often combined with Humberstone.
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Typical hours
Opening hours follow those of the associated museum, typically open from 9 am to 5 pm. It is advisable to check the current times for guided tours in advance.
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Photography
Photography is usually allowed on the grounds, especially impressive subjects are the abandoned machine halls. In some buildings, flash may be prohibited, please follow the signs.
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Time needed
A guided tour of the saltpeter works usually takes about 1.5 to 2 hours. Those who also want to visit nearby Humberstone should allow half a day.
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Combine with
The site is located very close to Humberstone, so both are often visited together. The neighboring ghost town and museum also offer interesting insights.
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Getting there
Santa Laura is about 50 kilometers east of Iquique and is best reached by car or as part of an organized tour. Bus connections are limited.
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Insider tip
Make sure to bring sunscreen, a hat, and plenty of water as the desert sun is very intense. Sturdy footwear is recommended on the uneven terrain.

Geography

Coordinates
-20.21000, -69.79420

Facts

  • Founded in 1872 during Chile's historic saltpeter boom.
  • UNESCO World Heritage site with Humberstone since 2005.
  • Production was permanently halted in the year 1960.
  • Home to the only surviving leaching plant of its specific type.
  • Located approximately 47 km east of the city of Iquique.
  • Supplied the global market with nitrogen-rich fertilizers.

Explore nearby

Notable places around

Humberstone Saltpeter WorksHumberstone Saltpeter Works<1 km · EExplore →
Giant of TarapacáGiant of Tarapacá21 km · NEExplore →
Geoglyphs of PintadosGeoglyphs of Pintados35 km · NWExplore →
Port of IquiquePort of Iquique40 km · SExplore →
PicaPica52 km · NExplore →
MamiñaMamiña64 km · NExplore →
PutrePutre82 km · EExplore →
Port of AricaPort of Arica88 km · SEExplore →

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

Vehicle
Only stops with (optional):

© OpenStreetMap contributors · OpenRouteService

Sights in the town Santa Laura Saltpeter Works (4)

Museo de Sitio Oficinas Salitreras Humberstone y Santa Laura🏛 museum

An open-air museum detailing the harsh life and industrial heritage of the nitrate boom.

Museo Minero y Mineralógico Ingeniero Eduardo Lillo🏛 museum

A mining museum exhibiting the tools and diverse minerals extracted from the surrounding arid landscape.

Oficina Salitrera "Santa Laura"📍 landmark

Featuring an iconic towering leaching plant, this historic site illustrates the industrial scale of saltpeter processing.

Mercado Municipal🎭 culture

The remains of the central market that once served the bustling mining community.

Sights nearby

Frequently asked questions

What was Santa Laura?
A large saltpeter works in the desert, now a UNESCO World Heritage site and ghost town.
Where is the works located?
In the Atacama Desert, about 47 km east of Iquique, near the town of Humberstone.
What can you visit there?
The industrial plant, the tall chimney, and the former living quarters of the workers.
Do I need a ticket for both sites?
Yes, one ticket usually covers both Santa Laura and the neighboring Humberstone site.
What is the climate like there?
Extremely dry and hot during the day, with cool wind in the afternoon; sun protection is vital.
Santa Laura Saltpeter Works: where is it located?
Santa Laura Saltpeter Works is located in Chile.
Santa Laura Saltpeter Works: what is there to see?
Highlights include Museo de Sitio Oficinas Salitreras Humberstone y Santa Laura, Museo Minero y Mineralógico Ingeniero Eduardo Lillo, Oficina Salitrera "Santa Laura".
Santa Laura Saltpeter Works: when is the best time to visit?
The most pleasant time to visit is Jan, Mar.
Santa Laura Saltpeter Works: why is it worth visiting?
The Santa Laura Saltpeter Works, located in the Atacama Desert, bear witness to Chile's industrial boom during the late 19th and early 20th centuries.
View on map → The Top 50 Attractions → OpenStreetMap →
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The largest prehistoric anthropomorphic geoglyph in the world, etched into the desert of the Tarapacá Region.
🗺️
Geoglyphs of Pintados
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Port of Iquique — Santa Laura Saltpeter Works (Chile)
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A major seaport in northern Chile, essential for the ZOFRI free trade zone.
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