Gallup, New Mexico. Coal from the nearby mines in the Atchison, Topeka and Santa Fe freight yards. The Gallup American… https://www.rawpixel.com/image/12292268/photo-image-sky-public-domain-landscapeFree Image from public domain license[Untitled photo, possibly related to: Company houses, coal mining town, Caples, West Virginia]. Sourced from the Library of… https://www.rawpixel.com/image/12247869/photo-image-person-sky-treeFree Image from public domain licensePittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Noon in the "bean hole". Sourced… https://www.rawpixel.com/image/12289965/photo-image-face-hand-personFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal… https://www.rawpixel.com/image/12290257/photo-image-face-people-public-domainFree Image from public domain license