
Laurentian Divide and Missabe Mountain form the geologic backdrop of this iron-rich landscape during a period of intense industrial activity. The city of Gilbert serves as the primary hub, surrounded by massive open-pit operations like the Gilbert Mine and Schley Mine. The extraction of ore is facilitated by the Duluth Missabe and Iron Range railroad, which weaves through complex mine dumps and active pits that define the northern half of the quadrangle.
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