Qualla: Eagle Mine

Eagle Mine: Introduction

Mon, 23 Feb 2026 00:00:00 GMT

Photo credit Yoopernewsman, CC BY-SA 3.0. In September 2021, a Porsche Taycan electric crossover drove down a ramp into the earth beneath Michigan's Upper Peninsula, descending more than 1,700 feet below sea level. Then it drove to the summit of Pikes Peak in Colorado. The total altitude change -- roughly three vertical miles -- set a Guinness World Record. But the starting point was the real story. Eagle Mine sits on the Yellow Dog Plains south of Big Bay, an expanse of boreal forest and wetland that gives no surface hint of what lies beneath: the only operating primary nickel mine in the United States, and a deposit that took over a billion years to reach human hands.

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Image: Yoopernewsman | CC BY-SA 3.0

Eagle Mine: A Rift in Deep Time

Mon, 23 Feb 2026 00:00:00 GMT

Photo credit Office of Governor Mark Dayton & Lt. Governor Tina Smith, CC BY 2.0. The ore at Eagle Mine owes its existence to the Midcontinent Rift, a tectonic event that began tearing North America apart approximately 1.1 billion years ago. Magma surged up through the fracturing crust and cooled into igneous rock, trapping nickel, copper, cobalt, platinum, pa...

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Image: Office of Governor Mark Dayton & Lt. Governor Tina Smith | CC BY 2.0

Eagle Mine: Into the Decline

Mon, 23 Feb 2026 00:00:00 GMT

Photo credit Office of Governor Mark Dayton & Lt. Governor Tina Smith, CC BY 2.0. Eagle is a decline-accessed underground mine, meaning there are no elevator shafts dropping straight down. Instead, a steady ramp spirals into the earth, wide enough for specialist mining vehicles to drive in and out. This ramp plunges to 1,774 feet below sea level, making Eagle ...

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Image: Office of Governor Mark Dayton & Lt. Governor Tina Smith | CC BY 2.0

Eagle Mine: Sacred Ground, Contested Ground

Mon, 23 Feb 2026 00:00:00 GMT

Photo credit Office of Governor Mark Dayton & Lt. Governor Tina Smith, CC BY 2.0. The Yellow Dog Plains are not just geologically significant. Members of the Keweenaw Bay Indian Community consider the mine site sacred, and the project's permitting process became one of Michigan's most contentious environmental battles. When Kennecott Minerals (later acquired b...

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Image: Office of Governor Mark Dayton & Lt. Governor Tina Smith | CC BY 2.0

Eagle Mine: Three Miles Up

Mon, 23 Feb 2026 00:00:00 GMT

Photo credit Office of Governor Mark Dayton & Lt. Governor Tina Smith, CC BY 2.0. The Guinness World Record attempt that began at the bottom of Eagle Mine in September 2021 was more than a publicity stunt. Porsche chose the Taycan 4S Cross Turismo specifically because it was one of the few electric vehicles capable of handling both the mine's underground terra...

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Image: Office of Governor Mark Dayton & Lt. Governor Tina Smith | CC BY 2.0