Subject
- Coal mines and mining1
- Compressors1
- Dams1
- Dredges1
- Dredging1
- Families1
- Frontier and pioneer life1
- Gold dredging1
- Gold mines and mining--Equipment and supplies1
- Historic sites1
- Hunting1
- Indian reservations1
- Indigenous peoples1
- Landscapes1
- Lead mines and mining1
- Log cabins1
- Mine shafts1
- Mineral industries1
- Miners1
- Mountains1