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Subject (Region)
- Alaska[remove]39
- Arctic National Wildlife Refuge7
- National Petroleum Reserve7
- National Petroleum Reserve (Alaska)6
- North Slope4
- Alaska, Gulf of, Region3
- Pacific Coast (U.S.)3
- United States3
- Arctic National Wildlife Refuge (Alaska)2
- Pacific Coast2
- Bering Sea1
- Brooks Range Region1
- Colville River Delta1
- Cook Inlet Region1
- Cook Inlet Watershed1
- Innoko National Wildlife Refuge (Alaska)1
- Kodiak Island1
- Kodiak National Wildlife Refuge (Alaska)1
- North Slope (Alaska)1
- North Slope Region1