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A resource for reliable information about significant people, places, events, and things in Minnesota history.
Oliver Mining Company steam-powered shovel near Hibbing, 1919. In this method of mining, a shovel removes overburden, the rock and soil that covers the ore body, so that miners can access the ore from the open pit.
Made possible by the Arts and Cultural Heritage Fund through the vote of Minnesotans on November 4, 2008. Administered by the Minnesota Historical Society.
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