The Patuxent Range or macizo Armada Argentina is a major

range Range may refer to: Geography * Range (geographic), a chain of hills or mountains; a somewhat linear, complex mountainous or hilly area (cordillera, sierra) ** Mountain range, a group of mountains bordered by lowlands * Range, a term used to i ...

of the

Pensacola Mountains The Pensacola Mountains are a large group of mountain ranges of the Transantarctic Mountains System, located in the Queen Elizabeth Land region of Antarctica. Geography They extend 450 km (280 mi) in a NE-SW direction. Subranges of the ...

, comprising the Thomas Hills, Anderson Hills,

Mackin Table Mackin Table is an ice-topped, wedge-shaped plateau, about long, standing just north of Patuxent Ice Stream in the Patuxent Range of the Pensacola Mountains, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Na ...

and various

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 and ridges bounded by the Foundation Ice Stream,

Academy Glacier Foundation Ice Stream is a major ice stream in Antarctica's Pensacola Mountains. The ice stream drains northward for along the west side of the Patuxent Range and the Neptune Range to enter the Ronne Ice Shelf westward of Dufek Massif. The Unit ...

and the

Patuxent Ice Stream Patuxent Ice Stream () is a broad Antarctic ice stream between the Patuxent Range and Pecora Escarpment in the Pensacola Mountains, draining northwestward to the upper part of Foundation Ice Stream. Mapped by U.S. Geological Survey (USGS) from sur ...

. Discovered and partially photographed on January 13, 1956 in the course of a transcontinental nonstop plane flight by personnel of U.S. Navy

Operation Deep Freeze Operation Deep Freeze (OpDFrz or ODF) is codename for a series of United States missions to Antarctica, beginning with "Operation Deep Freeze I" in 1955–56, followed by "Operation Deep Freeze II", "Operation Deep Freeze III", and so on. (There w ...

I from

McMurdo Sound McMurdo Sound is a sound in Antarctica. It is the southernmost navigable body of water in the world, and is about from the South Pole. Captain James Clark Ross discovered the sound in February 1841, and named it after Lt. Archibald McMurdo o ...

Weddell Sea The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. The easternmost point is Cape Norvegia at Princess Martha ...

and return. Named by

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 ...

(US-ACAN) for the

Naval Air Station Patuxent River Naval Air Station Patuxent River , also known as NAS Pax River, is a United States naval air station located in St. Mary’s County, Maryland, on the Chesapeake Bay near the mouth of the Patuxent River. It is home to Headquarters, Naval Air Sys ...

(at Cedar Point, Maryland) located on the south side of the mouth of the

Patuxent River The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast ...

. The range was mapped in detail by

USGS 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, a ...

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 o ...

air photos, 1956-66.

Key geographic features

* O'Connell Nunatak () is a peaked rock

, , standing 6 nautical miles (11 km) south-southeast of Mount Murch in the southern Anderson Hills. Named by US-ACAN for Richard V. O'Connell, seismologist at

Amundsen–Scott South Pole Station The Amundsen–Scott South Pole Station is the United States scientific research station at the South Pole of the Earth. It is the southernmost point under the jurisdiction (not sovereignty) of the United States. The station is located on the ...

, winter 1967. * Shurley Ridge () is a partly snow-covered ridge projecting from the southwest side of

, southeast of

Snake Ridge Snake Ridge () is a serpentine ridge, long, adjoining the northwest extremity of Mackin Table in the Patuxent Range, Pensacola Mountains. Exploration and name Snake Ridge was mapped by United States Geological Survey (USGS) from surveys and Uni ...

. Named by US.ACAN for Jay T. Shurley, biologist at

, summer 1966-67. * Mount Tolchin () , stands southwest of Houk Spur at the southwest extremity of

in the southern end of the range. Named by US-ACAN for Lt. Sidney Tolchin (MC) U.S. Navy, officer in charge of the

in the winter of 1959. *Mount Warnke () , stands NE of Martin Peak in the Thomas Hills. Named by US-ACAN for Detlef A. Warnke, biologist at

Palmer Station Palmer Station is a United States research station in Antarctica located on Anvers Island, the only US station located north of the Antarctic Circle. Initial construction of the station finished in 1968. The station, like the other U.S. Antarcti ...

, 1966-67. * Mount Yarbrough () is a ridge-like

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited Summit (topography), summit area, and ...

, , standing southwest of Nance Ridge in the Thomas Hills in the northern side of the range. Named by US-ACAN for Leonard S. Yarbrough, industrial engineer at

Plateau Station Plateau Station is an inactive American research and South Pole—Queen Maud Land Traverse support base on the central Antarctic Plateau. Construction on the site started on December 13, 1965, and the first traverse team (named SPQML II) arr ...

, 1965-66.

Features

Geographical features include:

Anderson Hills

Thomas Hills

Other features

Bennett Spires Mount Hawkes is, at , the highest mountain along the Washington Escarpment, standing at the east side of Jones Valley Jones Valley () is a snow-covered valley between West Prongs and Elliott Ridge in the southern Neptune Range of the Pensacola ...

Bessinger Nunatak Mackin Table is an ice-topped, wedge-shaped plateau, about long, standing just north of Patuxent Ice Stream in the Patuxent Range of the Pensacola Mountains, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Na ...

Blake Rock Mackin Table is an ice-topped, wedge-shaped plateau, about long, standing just north of Patuxent Ice Stream in the Patuxent Range of the Pensacola Mountains, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Na ...

Brazitis Nunatak Snake Ridge () is a serpentine ridge, long, adjoining the northwest extremity of Mackin Table in the Patuxent Range, Pensacola Mountains. Exploration and name Snake Ridge was mapped by United States Geological Survey (USGS) from surveys and Uni ...

Brooks Nunatak Snake Ridge () is a serpentine ridge, long, adjoining the northwest extremity of Mackin Table in the Patuxent Range, Pensacola Mountains. Exploration and name Snake Ridge was mapped by United States Geological Survey (USGS) from surveys and Uni ...

* Brown Ridge * DesRoches Nunataks * DeWitt Nunatak *

Foundation Ice Stream Foundation Ice Stream is a major ice stream in Antarctica's Pensacola Mountains. The ice stream drains northward for along the west side of the Patuxent Range and the Neptune Range to enter the Ronne Ice Shelf westward of Dufek Massif. The Unit ...

* Houk Spur * Lawrence Nunatak * Lekander Nunatak *

* Mount Bragg * Mount Campleman * Mount Dover * Mount Dumais * Mount Wanous *

Mount Weininger Mackin Table is an ice-topped, wedge-shaped plateau, about long, standing just north of Patuxent Ice Stream in the Patuxent Range of the Pensacola Mountains, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Na ...

* Natani Nunatak *

* Patuxent * Pecora Escarpment * Phillips Nunatak * Plankington Bluff * Postel Nunatak *

* Stout Spur * Sullivan Peaks * White Nunataks

References

{{reflist, 30em Mountain ranges of Queen Elizabeth Land . Transantarctic Mountains