Humberstone and Santa Laura Saltpeter Works
Last Updated on February 12, 2024 by Travelationship Saltpeter. Do you know what it is? I didn’t, but the word sure did conjure up some awkward images. For most of us born after the Great Depression, we know saltpeter as potassium nitrate. Up until about the 1930s, saltpeter works were a booming industry in Chile, …
