Dufek Massif, Augusto Pinochet Massif or Santa Teresita Massif is a rugged, largely snow-covered

massif In geology, a massif ( or ) is a section of a planet's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole. The term also refers to a ...

long, standing west of the

Forrestal Range The Forrestal Range () is a largely snow-covered mountain range, about long, standing east of Dufek Massif and the Neptune Range in the Pensacola Mountains of Antarctica. Discovered and photographed on 13 January 1956 on a transcontinental patrol ...

in the northern part 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 th ...

. It was discovered and photographed on January 13, 1956, on a transcontinental patrol plane flight 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 ...

from McMurdo Sound to the vicinity of the

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, and named by the Advisory Committee on Antarctic Names for Rear Admiral George J. Dufek, Dufek Coast,

Dufek Head Dufek Head () is an ice-covered headland northeast of Tyree Head in southern Ross Island. The headland rises to at the east side of the terminus of Aurora Glacier. It was named by the Advisory Committee on Antarctic Names (2000) in association wi ...

, and

Dufek Mountain Dufek may refer to: * 3781 Dufek, a minor planet named after George Dufek * Dufek Coast in Antarctica, named after U.S. Rear Admiral George J. Dufek * Dufek Head, a headland in Antarctica * Dufek Massif Dufek Massif, Augusto Pinochet Massif or Sa ...

are also named for Dufek. U.S. Navy, who was in direct operational command of U.S. Navy Task Force 43 during that operation. The entire Pensacola Mountains were mapped by the

U.S. 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, and ...

in 1967 and 1968 from ground surveys and U.S. Navy tricamera aerial photographs taken in 1964. The range covers and its highest point is England Peak, at . Other notable local terrain features include

Kelley Spur Kelley Spur is a rock Spur (topography), spur east of Spear Spur on the south side of Dufek Massif in the Pensacola Mountains of Antarctica. It was mapped by the United States Geological Survey from surveys and United States Navy air photos, 1956� ...

, a rock

spur A spur is a metal tool designed to be worn in pairs on the heels of riding boots for the purpose of directing a horse or other animal to move forward or laterally while riding. It is usually used to refine the riding aids (commands) and to ba ...

east of

Spear Spur Spear Spur is a rock spur 3 nautical miles (6 km) east of Clinton Spur and 2 nautical miles (3.7 km) west of Kelley Spur, on the south side of Dufek Massif, Pensacola Mountains. Mapped by United States Geological Survey (USGS) from surveys ...

on the south side of Dufek Massif.

Features

Geographical features include:

Boyd Escarpment

Other features

* Alley Spur * Aughenbaugh Peak * Brown Nunataks * Cairn Ridge * Carlson Buttress * Clemons Spur * Clinton Spur * Czamanske Ridge * Davis Valley * Edge Glacier * Enchanted Valley * England Peak * Ford Ice Piedmont * Forlidas Pond * Forlidas Ridge * Foundation Ice Stream * Frost Spur * Hannah Peak *

Jaburg Glacier Jaburg Glacier () is a broad glacier draining westward between the Dufek Massif and the Cordiner Peaks in the Pensacola Mountains of Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1956–6 ...

* Jaeger Table *

* Kistler Valley * Lewis Spur * Neuburg Peak * Nutt Bluff * Petite Rocks * Preslik Spur * Pyroxenite Promontory * Rautio Nunatak * Sallee Snowfield * Sapp Rocks *

* The Organ Pipes (Antarctica) * Tranquillity Valley * Walker Peak * Welcome Pass * Worcester Summit * Wujek Ridge

Notes

References

Mountain ranges of Queen Elizabeth Land Pensacola Mountains {{QueenElizabethLand-geo-stub