It was first seen from the air and roughly mapped by the United States Antarctic Service, 1939-41.
It was discovered by the United States Antarctic Service, 1939-41.
The name was applied by the United States Antarctic Service (1939-41) which explored the area.
It was first seen by the United States Antarctic Service in 1940, but not named.
It was also mapped in 1940 by the United States Antarctic Service.
The feature was photographed by the United States Antarctic Service, 1939-41.
They were first seen and photographed from the air by the United States Antarctic Service 1939-41.
The United States Antarctic Service discovered and photographed it from the air in 1940.
It was first surveyed by the United States Antarctic Service, 1939-41.
It was photographed from the air in 1940 by the United States Antarctic Service.
It was first seen from the air and roughly mapped by the United States Antarctic Service, 1939-41.
It was discovered by the United States Antarctic Service, 1939-41.
The name was applied by the United States Antarctic Service (1939-41) which explored the area.
It was first seen by the United States Antarctic Service in 1940, but not named.
It was also mapped in 1940 by the United States Antarctic Service.
The feature was photographed by the United States Antarctic Service, 1939-41.
They were first seen and photographed from the air by the United States Antarctic Service 1939-41.
The United States Antarctic Service discovered and photographed it from the air in 1940.
It was first surveyed by the United States Antarctic Service, 1939-41.
It was photographed from the air in 1940 by the United States Antarctic Service.