Marble, Minnesota - Hill Annex Mine State Park. The park centers around an open pit mine, now flooded, where iron ore was extracted from 1913 to 1978.

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Size: 6260px × 4174px
Location: 403 Wiley Oakley Dr, Gatlinburg, TN 37738, USA
Photo credit: © Jim West / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, annex, hill, history, horizontal, iron, lake, mining, minnesota, natural, open, ore, park, pit, range, resources, state, states, united, usa