Gilbert Bluff is a rock bluff

Cliff

In geography and geology, a cliff is a significant vertical, or near vertical, rock exposure. Cliffs are formed as erosion landforms due to the processes of erosion and weathering that produce them. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually...

 with abrupt cliff faces on the north and east sides, located on the south side of Garfield Glacier

Garfield Glacier

Garfield Glacier is a glacier, 6 nautical miles long, flowing between Peden Cliffs and Cox Point to the east side of Hull Bay on the coast of Marie Byrd Land. Mapped by United States Geological Survey from surveys and U.S. Navy air photos, 1959-65. Named by Advisory Committee on Antarctic Names ...

 and near the north margin of Erickson Bluffs

Erickson Bluffs

Erickson Bluffs is a series of conspicuous rock bluffs extending from Gilbert Bluff to Mount Sinha, forming the southwest edge of McDonald Heights, near the coast of Marie Byrd Land. A portion of the bluffs were photographed from aircraft of the United States Antarctic Service , 1939-41. They were...

 in the McDonald Heights

McDonald Heights

McDonald Heights is a broad, mainly snow-covered heights about 35 nautical miles long and rising over 1,000 m between Cape Burks and Morris Head on the coast of Marie Byrd Land. The heights are bounded southward by the Hull, Kirkpatrick and Johnson Glaciers. The feature was photographed from...

 area of coastal Marie Byrd Land

Marie Byrd Land

Marie Byrd Land is the portion of West Antarctica lying east of the Ross Ice Shelf and the Ross Sea and south of the Pacific Ocean, extending eastward approximately to a line between the head of the Ross Ice Shelf and Eights Coast. It stretches between 158°W and 103°24'W...

.

Mapped by United States Geological Survey

United States Geological Survey

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

 (USGS) from surveys and U.S. Navy air photos, 1959-65. Named by Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (US-ACAN) for James R. Gilbert, member of the biological party that made population studies of seals, whales and birds in the pack ice of the Bellingshausen

Bellingshausen Sea

The Bellingshausen Sea is an area along the west side of the Antarctic Peninsula, west of Alexander Island, east of Cape Flying Fish on Thurston Island, and south of Peter I Island . In the south are, from west to east, Eights Coast, Bryan Coast and English Coast of West Antarctica...

 and Amundsen

Amundsen Sea

The Amundsen Sea is an arm of the Southern Ocean off Marie Byrd Land in western Antarctica. It is bounded by Cape Flying Fish, the northwestern tip of Thurston Island to the east and Cape Dart on Siple Island to the west. East of Cape Flying Fish starts the Bellingshausen Sea. West of Cape Dart is...

 Seas using USCGC Southwind and its two helicopters, 1971-72.