The Barrett Nunataks () are a group of

nunatak A nunatak (from Inuit ''nunataq'') is the summit or ridge of a mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They are also called glacial islands. Examples are natural pyramidal peaks. ...

s located on the east side of the Dott Ice Rise overlooking

Constellation Inlet Constellation Inlet is an ice-filled inlet, long and wide, between the Dott Ice Rise and the Skytrain Ice Rise at the southwest margin of the Ronne Ice Shelf. It was mapped by the United States Geological Survey from surveys and from U.S. Nav ...

, in the

Heritage Range The Heritage Range is a major mountain range, long and wide, situated southward of Minnesota Glacier and forming the southern half of the Ellsworth Mountains in Antarctica. The range is complex, consisting of scattered ridges and peaks of mod ...

Ellsworth Mountains The Ellsworth Mountains are the highest mountain ranges in Antarctica, forming a long and wide chain of mountains in a north to south configuration on the western margin of the Ronne Ice Shelf in Marie Byrd Land. They are bisected by Minnesota ...

. They were named by the

University of Minnesota The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Tw ...

Ellsworth Mountains Party, 1962–63, for Peter J. Barrett, geologist with the party. The Dott Ice Rise is a

peninsula A peninsula (; ) is a landform that extends from a mainland and is surrounded by water on most, but not all of its borders. A peninsula is also sometimes defined as a piece of land bordered by water on three of its sides. Peninsulas exist on all ...

-like feature that is ice-drowned except for the nuntaks, about 20 nautical miles (40 km) long, extending eastward from the

of the

and terminating at

at the southwest edge of Ronne Ice Shelf. It was mapped by the

United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the 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, ...

from surveys and

U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of ...

air photos, 1961–66, and was named by the

Advisory Committee on Antarctic Names The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending commemorative names for features in Antarctica. History The committee was established ...

for Robert H. Dott, a

United States Antarctic Research Program The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has presence in the A ...

geologist and senior U.S. representative at Bernardo O'Higgins Base, summer 1961–62.

References

* Nunataks of Ellsworth Land {{EllsworthLand-geo-stub