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Subject (Region)
- Arctic regions61
- Antarctica14
- Russia11
- Soviet Union9
- North Pacific Ocean8
- Russia (Federation)8
- Alaska7
- Russia, Northern7
- Bering Strait Region5
- North America5
- Northeast Passage5
- Russian Far East (Russia)5
- Arctic Ocean4
- Arctic Regions4
- North Pole4
- Northwest Coast of North America4
- Pacific Coast (North America)4
- Pacific Ocean3
- Russian Far East3
- Siberia (Russia)3