Map of Humberstone and Santa Laura Saltpeter Works

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Canada - 20-Apr-19 -

Visited dec 2018. Humberstone is a little out of the way in the north of Chile but I love these kind of sites so we suffered the extra 6 hours on a bus from San Pedro de Atacama to get to Iquique. Fortunately domestic flights are cheap in Chile (for now) so could fly back to Santiago easily after. 

The site is easily visited by local bus from Iquique, dropping you off on the main highway out front. Humberstone and Santa Laura are easily visible from there. As the representative of over 200 similar sites in the region I can only imagine the poor state the others must be in. Parts of Humberstone (the plaza, theatre, market a few homes, etc) have been restored and the museums are full of quality detailed information, but what I liked the most was wandering through the rusted fences and into the broken homes and factories still barely standing. Without more support most structures might not last much longer as is the worry with Santa Laura. Unfortunately we spent so long in Humberstone that we didn't have time to walk the 2km over to Santa Laura and see it as well. I'd suggest an early start to be on the safe side. 

Hard to believe that not so long ago this region at its peak was producing nearly 90% of the world's nitrates and now it is nearly forgotten, wearing away in the desert. Overall a very worthy inclusion of a globally significant site. 


Netherlands - 11-Mar-15 -

I visited the site end of 2014. Humberstone is in pretty good shape but Santa Laura I can imagine it's on the danger list. The sites really show the history of the mining. When I visited there were not that many visitors in Humberstone and in santa Laura I was the third that day only. It's a ghost town, and when you just stand still you only here the howling wind through the buildings.

Read more from Chris here.

Jarek Pokrzywnicki

Poland - 07-Oct-08 -

Visited the site in November 2006. Sunny and hot day so you could imagine how it is to wander throughout a desert whe the whole salitera is located. Site consist of 2 units: Humberstone ghost town with market square, church, theatre, swimming pool school and numer of houses (all restored) and Santa Laura factory (much more ruined, that's why it is listed on List in Danger) located some 2 km from the town) and numerous other object (railways, dumps, paths, ruins). Recommended for those who like factory architecture or want to see the life of workers in Chile some 50-100 years ago. But hurry up - the desert and winds deteriorate the condition of the site constantly.

Maria Pastora Sandoval Campos

Chile - 08-Apr-06 -

It was a wonderful experiencie go to the saltpeters works. I'm a journalist and I wrote about it. It was very incredible to see things I only hearded and see in photos.

Really amazing! I want to be tehe again! To keep learning about our history.

Here are my links about Saltpeters Works:

Saltpeter process in Santa Laura

Santa Laura Museum

Humberstone way of life

Photos (captions in Spanish)

Post in my blog (in Spanish):

Site Info

Full Name
Humberstone and Santa Laura Saltpeter Works
Unesco ID
2 3 4
Secular structure - Factories and industry

Site History

2019 Removed from Danger list

2005 In Danger

"Extremely fragile nature of the buildings; Lack of maintenance for 40 years; Vandalism due to looting of re-usable materials; Damage caused by the wind"

2005 Inscribed


The site has 1 locations

Humberstone and Santa Laura Saltpeter Works


The site has

Human Activity
WHS on Other Lists
World Heritage Process