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Place
- Antarctica198
- Greenland143
- Canada87
- Greece41
- United States31
- McMurdo Dry Valleys, Antarctica30
- Northwest Territories, Canada26
- Manitoba, Canada20
- Ontario, Canada20
- Alaska19
- Saskatchewan, Canada18
- Hawaii17
- Alberta, Canada16
- New Jersey15
- Puerto Rico12
- United States Virgin Islands12
- Washington (D.C.)12
- Alabama11
- Arizona11
- Arkansas11