Santa Laura Saltpeter Works

Oficina Salitrera Santa Laura

A nitrate processing plant that, like Humberstone, is a World Heritage Site. Its towering leaching hall and rusting machinery define the desert industrial heritage landscape.

Santa Laura Saltpeter Works lies about 1.5 kilometers west of Humberstone. Operations began in 1872, and it is known for its leaching hall, tall wood-and-iron plant buildings and rusting machinery. Visitors can see up close how nitrate was processed from ore into finished product, and the manager's residence has been turned into a small exhibition hall. One ticket covers both sites. It is about a 20-minute walk, or a few minutes by car. The structures are aging, so do not climb on them or enter the fenced-off areas.

Opening hours

About 09:00–18:00

World Heritage · Industrial heritage · Nitrate

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