Johnson Neck

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Johnson Neck is a relatively low, ice-drowned neck of land, or isthmus, which joins the Dott Ice Rise to the east side of the Pioneer Heights in the Heritage Range of the Ellsworth Mountains, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1961–66, and was named by the Advisory Committee on Antarctic Names for Douglas J. Johnson, a meteorologist at Byrd Station in 1965. [1]

Isthmus Narrow strip of land connecting two larger land areas

An isthmus is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait is the sea counterpart of an isthmus.

Dott Ice Rise is a peninsula-like feature that is ice-drowned except for the Barrett Nunataks, about 20 nautical miles (40 km) long, extending eastward from the Heritage Range of the Ellsworth Mountains and terminating at Constellation Inlet at the southwest edge of Ronne Ice Shelf. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1961–66, and was named by the Advisory Committee on Antarctic Names for Robert H. Dott, a United States Antarctic Research Program geologist and senior U.S. representative at Bernardo O'Higgins Base, summer 1961-62.

Pioneer Heights is a group name in the Heritage Range, Ellsworth Mountains, encompassing the large area of hills, ridges and peaks located eastward of Schneider and Schanz Glaciers and between Splettstoesser and Union Glaciers. Among these features are the Inferno Ridge, the Nimbus Hills, Gross, Buchanan and Collier Hills. The Pioneer Heights were mapped by the United States Geological Survey (USGS) from ground surveys and U.S. Navy air photos from 1961-66. The name was applied by the Advisory Committee on Antarctic Names (US-ACAN) in association with the name Heritage Range.

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Bugge Islands

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Flanagan Glacier glacier in Antarctica

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Forlidas Pond is a round frozen pond, 100 metres (110 yd) in diameter, lying in a morainal valley east of the north end of Forlidas Ridge, Dufek Massif, Queen Elizabeth Land, Antarctica. The only pond in the northern Pensacola Mountains, it is of much interest to biologists. The pond was discovered and briefly investigated in December 1957 by a United States – International Geophysical Year party from Ellsworth Station. The name is in association with Forlidas Ridge and was suggested by Arthur B. Ford of the United States Geological Survey following geological work in the area, 1978–79.

Heap Glacier is a glacier 10 nautical miles (19 km) long flowing northeastward to Mulock Glacier, to the east of Henry Mesa in Antarctica. It was mapped by the United States Geological Survey from tellurometer surveys and Navy air photos, 1959–63, and was named by the Advisory Committee on Antarctic Names for John A. Heap, a member of the University of Michigan Ross Ice Shelf Studies party, 1962–63.

Higgins Nunatak is the largest of the Samuel Nunataks, lying near the south end of this group in the Heritage Range in Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1961–66, and was named by the Advisory Committee on Antarctic Names for utilitiesman John C. Higgins, U.S. Navy, a member of the McMurdo Station party during Operation Deep Freeze 1966.

Henderson Glacier glacier in Antarctica

Henderson Glacier is a glacier about 7 nautical miles long in the Enterprise Hills of the Heritage Range, Antarctica. It flows northeast from Schoeck Peak and Hoinkes Peak to enter Union Glacier just east of Mount Rossman. Henderson Glacier was mapped by the United States Geological Survey from surveys and U.S. Navy air photos 1961–66, and was named by the Advisory Committee on Antarctic Names for Felix E. Henderson, a United States Antarctic Research Program meteorologist at Eights Station in 1965.

MacNamara Glacier glacier in Antarctica

MacNamara Glacier is a glacier in the Patuxent Range of the Pensacola Mountains in Antarctica, draining northeastward between the Thomas Hills and Anderson Hills to Foundation Ice Stream. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1956–66, and was named by the Advisory Committee on Antarctic Names for Edlen E. MacNamara, a United States Antarctic Research Program exchange scientist at Molodezhnaya Station, winter 1967.

Mount Rossman is a prominent wedge-shaped, ice-free mountain, 1,450 m, located at the north end of the Enterprise Hills between Union and Henderson Glaciers, in the Heritage Range in Antarctica. It was mapped by the United States Geological Survey (USGS) from surveys and U.S. Navy air photos from 1961-66. It was named by the Advisory Committee on Antarctic Names (US-ACAN) after Rossman W. Smith, an ionospheric physicist at Eights Station, Antarctica in 1965, the Station Scientific Leader at Byrd Station, Antarctica in 1967, and a glaciologist on the Queen Maud Land Traverse, Antarctica in 1968, when it was still "Terra Incognita".

Linchpin Ice Rise is a small ice rise northeast of Miller Ice Rise, situated near the ice front of Wordie Ice Shelf on the Fallières Coast of Antarctica. The feature was mapped from U.S. Landsat imagery, 1974–79, and was so named by the UK Antarctic Place-Names Committee because the ice rise plays a key role (linchpin) in maintaining the position of the ice front, as observed in 1979.

Hinkley Glacier

Hinkley Glacier is a glacier flowing northeastward from Corbet Peak and Schoening Peak, Vinson Massif on the east slope of Sentinel Range in the Ellsworth Mountains, Antarctica, and continuing between Mount Segers and Zinsmeister Ridge to enter Dater Glacier southeast of Nebeska Peak and northwest of Sipey Peak. It was named by US-ACAN (2006) after Todd K. Hinkley, Technical Director, National Ice Core Laboratory, U.S. Geological Survey, Denver, CO,2001-06.

References

PD-icon.svg This article incorporates  public domain material from the United States Geological Survey document "Johnson Neck" (content from the Geographic Names Information System ).

United States Geological Survey Scientific agency of the United States government

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, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility.

Geographic Names Information System geographical database

The Geographic Names Information System (GNIS) is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer. GNIS was developed by the United States Geological Survey in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names.

Coordinates: 79°27′S82°20′W / 79.450°S 82.333°W / -79.450; -82.333

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.