Topical Subjects
- Coal mines and mining--Kentucky--Dunham.1
- Coal mines and mining--Kentucky--Jackhorn.1
- Coal mines and mining--Kentucky--Jenkins.1
- Coal mines and mining--Kentucky.6
- Coal mines and mining--Ohio--Cadiz.1
- Coal mines and mining--Ohio--Georgetown.1
- Coal mines and mining--Pennsylvania--Finleyville.1
- Coal mines and mining--Pennsylvania--Gray.1
- Coal mines and mining--Pennsylvania--Jenner.1
- Coal mines and mining--Pennsylvania--Somerset.1
- Coal mines and mining--Safety measures.14
- Coal mines and mining--Waste disposal.1
- Coal mines and mining--West Virginia--Bartley.1
- Coal mines and mining--West Virginia--Fairmont.4
- Coal mines and mining--West Virginia--Middleton.1
- Coal mines and mining--West Virginia--Owings.3
- Coal mines and mining--West Virginia--Palatine Knob.1
- Coal mines and mining--West Virginia--Pocahontas--Maps.1
- Coal mines and mining--West Virginia--Pursglove.3
- Coal mines and mining--West Virginia--Shinnston.1