Three warehouses in Hibbing store over 3 million feet of core from over 20,000 holes drilled throughout Minnesota, keeping a "natural record" of the state's geology.

DNR's Drill Core Library drives discoveries by preserving the past

Stay up to date on what's happening up north with KAXE / KBXE News, bringing you the top stories across Northern Minnesota. KAXE / KBXE is the oldest rural community radio station in the U.S. and an independent NPR affiliate.

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DNR's Drill Core Library drives discoveries by preserving the past

DNR's Drill Core Library drives discoveries by preserving the past