Humberstone and Santa Laura Saltpeter Works

Humberstone and Santa Laura Saltpeter Works
UNESCO World Heritage Site
LocationIquique Province, Tarapacá Region, Chile
IncludesHumberstone, Chile 20°12′30″S 69°47′43″W / 20.20833°S 69.79528°W / -20.20833; -69.79528
Santa Laura, Chile 20°12′40″S 69°48′45″W / 20.21111°S 69.81250°W / -20.21111; -69.81250
CriteriaCultural: (ii), (iii), (iv)
Reference1178bis
Inscription2005 (29th Session)
Extensions2011
Endangered2005–2019[1]
Area573.48 ha (1,417.1 acres)
Buffer zone12,055 ha (29,790 acres)
Coordinates20°12′32″S 69°48′18″W / 20.209°S 69.805°W / -20.209; -69.805
Humberstone and Santa Laura Saltpeter Works is located in Tarapacá Region
Humberstone and Santa Laura Saltpeter Works
Location of Humberstone and Santa Laura Saltpeter Works in Tarapacá Region
Humberstone and Santa Laura Saltpeter Works is located in Chile
Humberstone and Santa Laura Saltpeter Works
Humberstone and Santa Laura Saltpeter Works (Chile)

Humberstone and Santa Laura Saltpeter Works are two former saltpeter refineries located in northern Chile. They were declared a UNESCO World Heritage Site in 2005, as a testament to the historical importance of saltpeter mining in Chile and the culture and social agenda that developed around it in the late 19th century.[2][3] The works were placed on the World Heritage List in Danger that same year, due to the fragility of the derelict buildings, but was removed in 2019.[4]

Geography

Humberstone and Santa Laura are located 45 km east of the city of Iquique in the Atacama Desert in the Tarapacá Region in northern Chile.[3] Other saltpeter works or "nitrate towns" include Chacabuco, Maria Elena, Pedro de Valdivia, Puelma and Aguas Santas.

Humberstone

Santa Laura

History

In 1872, the Guillermo Wendell Nitrate Extraction Company founded the saltpeter works of Santa Laura, while the region was still a part of Peru. In the same year, James Thomas Humberstone founded the "Peru Nitrate Company", establishing the works of "La Palma". Both works grew quickly, becoming busy towns characterized by English-style buildings.

While La Palma became one of the largest saltpeter extractors of the whole region, Santa Laura did not do well, as production was low. It was taken over in 1902 by the Tamarugal Nitrate Company. In 1913 Santa Laura halted its production until the Shanks extraction process was introduced, which enhanced productivity.

However the economic model collapsed during the Great Depression of 1929 because of the development of the synthesis of ammonia by the Germans Fritz Haber and Carl Bosch, which led to the industrial production of fertilizers. Practically bankrupt, both works were acquired by COSATAN (Compañía Salitrera de Tarapacá y Antofagasta) in 1934. COSATAN renamed La Palma into "Oficina Santiago Humberstone" in honor of its founder. The company tried to produce a competitive natural saltpeter by modernizing Humberstone, which led to its becoming the most successful saltpeter works in 1940.

Both works were abandoned in 1960 after the rapid decline that caused COSATAN to disappear in 1958. In 1970, after becoming ghost towns, they were declared national monuments and opened to tourism. In 2005 they were declared a World Heritage Site by UNESCO.

See also

References

  1. ^ "The Humberstone and Santa Laura Saltpeter Works site (Chile), removed from the List of World Heritage in Danger". UNESCO. Retrieved 7 July 2019.
  2. ^ "21 World Heritage Sites you have probably never heard of". Daily Telegraph.
  3. ^ a b "Humberstone and Santa Laura Saltpeter Works". UNESCO. Retrieved 28 March 2021.
  4. ^ "The Humberstone and Santa Laura Saltpeter Works site (Chile), removed from the List of World Heritage in Danger". UNESCO. Retrieved 26 March 2021.

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