https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12285319![Mahoning pit. Hibbing, Minnesota. Sourced from the Library of Congress.](https://images.rawpixel.com/image_social_square/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2xvYzIwMTc4MTM0NjUtaW1hZ2UuanBn.jpg)
![Mahoning pit. Hibbing, Minnesota. Sourced from the Library of Congress.](https://images.rawpixel.com/image_social_square/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2xvYzIwMTc4MTM0NjUtaW1hZ2UuanBn.jpg)
Mahoning pit. Hibbing, Minnesota. Sourced from the Library of Congress.
Mahoning pit. Hibbing, Minnesota. Sourced from the Library of Congress.
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