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Subject
- Land use[remove]255
- Public lands31
- Inclosures22
- Agriculture19
- Land tenure14
- Conservation of natural resources13
- Water resources development12
- Land titles11
- Irrigation10
- United States. Bureau of Land Management10
- Reversion9
- Environmental policy8
- Reclamation of land8
- United States. Department of the Interior8
- Human ecology6
- Hydroelectric power plants6
- Natural resources6
- Regional planning6
- United States. Bureau of Reclamation6
- Crops and water5