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Subject
- Real property20
- Geology17
- Railroads11
- Cartes8
- GeĢologie8
- Real estate development6
- Residential real estate6
- Administrative and political divisions4
- Mines and mineral resources4
- Forest reserves3
- Coal2
- Description and travel2
- Election districts2
- Indian reservations2
- Mining claims2
- Mining districts2
- Bituminous coal1
- Coal mines and mining1
- Copper ores1
- Discoveries in geography1
