The single largest source of a critical raw material that fueled early American industrialization was the

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The Mesabi iron range of Minnesota provided a vast amount of iron ore, which was the critical raw material needed for early American industrialization, particularly for the steel industry. It supplied the high-quality, low-cost iron ore that helped transform the US into an industrial powerhouse in the late 19th and early 20th centuries.

The Single Largest Source of a Critical Raw Material That