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Subject
- Wilderness areas[remove]45
- Land use26
- Planning24
- Mines and mineral resources5
- Public lands5
- Recreation areas4
- Forest reserves3
- Outdoor recreation3
- Land use, Rural2
- National parks and reserves2
- Recreational use2
- Conservation of natural resources1
- Environmental aspects1
- Environmental policy1
- Forest management1
- Habitat (Ecology)1
- Oil and gas leases1
- Power resources1
- Research natural areas1
- Ski resorts1
