Geographic location
Antarctic
29
The Antarctic
15
Greenland
8
Crater Lake
6
Lava Lake
6
Southern Ocean
6
East Antarctica
4
Argentina
3
Austral
3
Byrd
3
Devils Hole
3
Dome F
3
Dumont d'Urville
3
Dumont-d'Urville
3
Ner
3
Terre Adélie
3
Terre-Adélie
3
Ushuaia
3
Kerguelen
2
Îles Kerguelen
2
Indian
1
Pacific
1
Talos Dome
1
Wilkes Subglacial Basin
1