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Topical Subjects
- Coal Mines and Mining--Consolidation Coal Company.[remove]140
- Coal miners.47
- Coal mines and mining.42
- Coal-mining machinery.28
- Coal mines and mining--Equipment and supplies.19
- Coal--Transportation.19
- Power shovels.17
- Freight cars.13
- Coal mines and mining--West Virginia--Summerlee.8
- Tipples--West Virginia--Summerlee.8
- Coal--Transportation--West Virginia--Summerlee.7
- Freight cars--West Virginia--Summerlee.7
- Loaders (Machines)6
- Tipples.6
- Coal mines and mining--West Virginia.5
- Coal--Transportation--West Virginia.5
- Shuttle cars (Mine haulage)5
- Strip mining.5
- Coal.4
- Freight cars--West Virginia.4