
The Forgotten Charcoal Burners of the Middle Susquehanna Valley
Charcoal burners, commonly known as colliers, worked deep in Pennsylvania's forests, converting enormous quantities of wood into the fuel needed to manufacture iron. They often lived in temporary huts near their charcoal hearths, sometimes for much of the charcoal-making season. Charcoal was particularly suitable for early iron-making because it was rich in carbon, burned at high temperatures, and contained relatively few impurities.
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