https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12272896![Laying track in coal mine. Old Ben number eight mine. West Frankfort, Illinois. Sourced from the Library of Congress.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2xvYzIwMTc3NzcyMzctaW1hZ2UuanBn.jpg)
![Laying track in coal mine. Old Ben number eight mine. West Frankfort, Illinois. Sourced from the Library of Congress.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2xvYzIwMTc3NzcyMzctaW1hZ2UuanBn.jpg)
Laying track in coal mine. Old Ben number eight mine. West Frankfort, Illinois. Sourced from the Library of Congress.
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