Humberstone and Santa Laura are former saltpeter works in Chile’s Atacama Desert, where the remains of industry and community now stand within a stark, open landscape. Santa Laura is associated with the machinery and processing of nitrate ore; Humberstone preserves a broader company-town setting, including spaces linked to administration, housing and social life. Visiting both helps explain how an export industry depended not only on plants and equipment but also on the people who lived beside the works. The nitrate fields of northern Chile supplied a mineral fertilizer and other products that became important to international markets in the nineteenth and early twentieth centuries. The remote desert setting made extraction, processing, transport and worker settlement interdependent. Saltpeter works were industrial compounds, but they were also planned communities shaped by employer control, daily routines and a harsh environment. At Humberstone, surviving streets and civic buildings make that social dimension visible; at Santa Laura, the industrial remains bring attention to the processes that turned caliche into commercial nitrate.
These are not reconstructed boomtowns; their preserved fabric records how the Atacama was connected to distant markets. The emptiness visitors encounter today is powerful, but it should not obscure the thousands of people who worked and raised families in these settlements. Interpretation is essential: the ruins become more than picturesque backdrops when seen through labour, technology and the unequal structure of company life.