Ice-breaking vessels
| Content | Title | Season | Place | Field | Identifier |
|---|---|---|---|---|---|
|
Channel breaking McMurdo Sound Antarctica USS Atka | 1959-60 | McMurdo Sound | General | MCMEH-P001832 |
|
Channel breaking McMurdo Sound Antarctica USS Atka | 1959-60 | McMurdo Sound | General | MCMEH-P001832 |