The Mesabi Range is famous for its rich deposits of iron ore material, a mineral substance which, when heated in the presence of a reductant, will yield metallic iron (Fe).

Regarding the Mesabi Iron Range, it is an elongate trend containing very large deposits of iron ore. It is the largest of four major iron ranges in the region, collectively known as the Iron Range of Minnesota. Discovered in 1866, it is the chief iron ore mining district in the United States. Since 2014 the Mesabi Range and mines in the state of Michigan have combined to account for 93% of the usable iron ore produced in the USA.

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