Sentinel Range
Encyclopedia
The Sentinel Range is a major mountain range
situated northward of Minnesota Glacier
and forming the northern half of the Ellsworth Mountains
in Antarctica. The range trends NNW-SSE for about 185 km (115 mi) and is 24 to 48 km (15 to 30 mi) wide. Many peaks rise over 4000 m (13,123.4 ft) and Vinson Massif
(4892 m) in the southern part of the range is the highest elevation on the continent.
The range was first sighted and photographed from the air on November 23, 1935, by Lincoln Ellsworth
who in naming it recognised its prominent position as a landmark on an otherwise featureless ice surface. The range was first visited and partially surveyed in January 1958 by the Marie Byrd Land
Traverse party, led by Charles R. Bentley. The entire range was mapped by USGS
from aerial photography taken by U.S. Navy, 1958-61.
and Mount Dalrymple in the north part of the Sentinel Range. Mapped by the Marie Byrd Land Traverse party, 1957-58. Named by the Advisory Committee on Antarctic Names
(US-ACAN) for Edward A. Alf, meteorologist, member of the 1957 wintering party at Byrd Station
.
. Mapped by United States Geological Survey
(USGS) from surveys and U.S. Navy aerial photographs, 1957-60. Named by Advisory Committee on Antarctic Names
(US-ACAN) after Richard C. Atkinson
, Director, National Science Foundation
, 1977-80.
in the main western ridge of the Sentinel Range. Discovered by the Marie Byrd Land Traverse party, 1957-58, and named for Dr. Charles R. Bentley, leader of the traverse party and chief traverse seismologist at Byrd Station
, 1957-59.
for Paul C. Dalrymple, meteorologist, member of the wintering party at Little America V in 1957 and the South Pole Station in 1958.
in 1957.
in November–December 1956; Project Manager
for Ship Operations in the Office of Polar Programs, National Science Foundation
(NSF), 1965-70.
in 1957.
, and later Director, Institute of Polar Studies, Ohio State University
.
and 1.5 miles (2.4 km) south of Mount Milton in the south part of the Sentinel Range. First mapped by USGS from surveys and U.S. Navy aerial photographs, 1957-59. Named by Advisory Committee on Antarctic Names
(US-ACAN) in 1994 after Anton L. Inderbitzen, Associate Chief Scientist, Division of Polar Programs, National Science Foundation
(NSF), 1983–86; Head, Antarctic Staff, NSF, 1986–91; Deputy Assistant Director for Research, USGS, from 1991. At NSF, Inderbitzen was responsible for the coordination and planning of all scientific activities within the United States Antarctic Program
(USAP), and for the formulation and enforcement of U.S. environmental regulations in Antarctica.
, United States Air Force
(USAF), who participated in establishing the South Pole Station in the 1956-57 season.
(1957) and a member of the party.
, aerial photographer on flights over this range on Dec. 14-15, 1959.
, rising 8 km east of Mount Goldthwait. Mapped by USGS from surveys and US Navy air photos, 1957-59. Named by the US-ACAN for Captain Ernest A. Schmid, USAF, who participated in the establishment of the IGY
South Pole Station during the 1956-57 season.
at the east side of the head of Crosswell Glacier
, 11 km (7 mi) east of Mount Tyree
, in the central part of the Sentinel Range. Discovered by US Navy Squadron VX-6 on photographic flights of Dec. 14-15, 1959, and mapped by USGS
from these photos. Named by US-ACAN
for Chester W. Segers, a Navy cook and a member of the first wintering party at the South Pole Station during the IGY in 1957.
who called it "Mount Mary Louise Ulmer", after his wife. The peak was reidentified by comparing Ellsworth's photograph with those taken in 1959 by the U.S. Navy.
, 2,370 m, standing 3 nautical miles (6 km) west-northwest of Mount Ulmer in the north part of the range. Discovered by Lincoln Ellsworth on his trans-Antarctic flight of November 23, 1935. Named by the US-ACAN for the ship Wyatt Earp, used by Ellsworth in four expeditions to Antarctica between 1933 and 1939.
Mountain range
A mountain range is a single, large mass consisting of a succession of mountains or narrowly spaced mountain ridges, with or without peaks, closely related in position, direction, formation, and age; a component part of a mountain system or of a mountain chain...
situated northward of Minnesota Glacier
Minnesota Glacier
Minnesota Glacier is a broad glacier in Antarctica. It is about 64 km long and 8 km wide, and flows east through the Ellsworth Mountains, separating the Sentinel and Heritage ranges. It is nourished by ice from the plateau west of the mountains and by the Nimitz and Splettstoesser...
and forming the northern half of the Ellsworth Mountains
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. They are bisected by Minnesota Glacier to form the northern Sentinel Range and the southern Heritage...
in Antarctica. The range trends NNW-SSE for about 185 km (115 mi) and is 24 to 48 km (15 to 30 mi) wide. Many peaks rise over 4000 m (13,123.4 ft) and Vinson Massif
Vinson Massif
Vinson Massif is the highest mountain of Antarctica, lying in the Sentinel Range of the Ellsworth Mountains, which stand above the Ronne Ice Shelf near the base of the Antarctic Peninsula. The massif is located about from the South Pole and is about long and wide. At the highest point is Mount...
(4892 m) in the southern part of the range is the highest elevation on the continent.
The range was first sighted and photographed from the air on November 23, 1935, by Lincoln Ellsworth
Lincoln Ellsworth
Lincoln Ellsworth was an arctic explorer from the United States.-Birth:He was born on May 12, 1880 to James Ellsworth and Eva Frances Butler in Chicago, Illinois...
who in naming it recognised its prominent position as a landmark on an otherwise featureless ice surface. The range was first visited and partially surveyed in January 1958 by the 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...
Traverse party, led by Charles R. Bentley. The entire range was mapped by USGS
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,...
from aerial photography taken by U.S. Navy, 1958-61.
Mountains and peaks
Mountain | Metres | Feet |
---|
Mount Alf
Mount Alf is a mountain rising over 3,200 m between Mount SharpMount Sharp
Mount Sharp is a mountain over 3,000 m, standing 2 miles southeast of Mount Barden in the north part of the Sentinel Range. Mapped by the Marie Byrd Land Traverse party, 1957–58, who named the mountain for Professor Robert P. Sharp, member of the Technical Panel on Glaciology, U.S. National...
and Mount Dalrymple in the north part of the Sentinel Range. Mapped by the Marie Byrd Land Traverse party, 1957-58. Named by the 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 Edward A. Alf, meteorologist, member of the 1957 wintering party at Byrd Station
Byrd Station
Byrd Station refers to a research station established by the United States during the International Geophysical Year by the U.S. Navy during Operation Deep Freeze II in West Antarctica at 80°, 120°W...
.
Mount Atkinson
Mount Atkinson is a prominent mountain 3.5 miles (6 km) west-southwest of Mount CraddockMount Craddock
Mount Craddock is a large, bold mountain forming the south extremity of Craddock Massif in Sentinel Range, the highest mountain in Antarctica. It is linked by Karnare Col to Mount Strybing in the southern Sentinel Range...
. 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 aerial photographs, 1957-60. 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) after Richard C. Atkinson
Richard C. Atkinson
Richard Chatham Atkinson is an American professor of psychology and academic administrator. He is the former president and regent of the University of California system, and former chancellor of U.C...
, Director, National Science Foundation
National Science Foundation
The National Science Foundation is a United States government agency that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National Institutes of Health...
, 1977-80.
Mount Bentley
Mount Bentley is a mountain (4,245 m) standing 2 nautical miles (3.7 km) north of Mount AndersonMount Anderson (Antarctica)
Mount Anderson is a high mountain in the northern part of the Sentinel Range in Ellsworth Mountains, Antarctica. Probuda Ridge is trending northeast of the peak, and Ellen Glacier and Embree Glacier drain its eastern and northeastern slopes respectively...
in the main western ridge of the Sentinel Range. Discovered by the Marie Byrd Land Traverse party, 1957-58, and named for Dr. Charles R. Bentley, leader of the traverse party and chief traverse seismologist at Byrd Station
Byrd Station
Byrd Station refers to a research station established by the United States during the International Geophysical Year by the U.S. Navy during Operation Deep Freeze II in West Antarctica at 80°, 120°W...
, 1957-59.
Mount Dalrymple
Mount Dalrymple is a mountain between Mount Alf and Mount Goldthwait in the northern part of the Sentinel Range. It was mapped by the Marie Byrd Land Traverse party, 1957–58 and named by the Advisory Committee on Antarctic NamesAdvisory 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...
for Paul C. Dalrymple, meteorologist, member of the wintering party at Little America V in 1957 and the South Pole Station in 1958.
Mount Davis
Mount Davis is a mountain located 1.6 km north of Mount Bentley and 2.4 km southeast of Mount Hale. Discovered by the Marie Byrd Land Traverse party, 1957–58, and named for Leo E. Davis, geomagnetician and seismologist at Byrd StationByrd Station
Byrd Station refers to a research station established by the United States during the International Geophysical Year by the U.S. Navy during Operation Deep Freeze II in West Antarctica at 80°, 120°W...
in 1957.
Mount Dawson
Mount Dawson is a sharp, pyramidal mountain located 4 km (2.5 mi) northwest of Mount Reimer. Discovered by the Marie Byrd Land Traverse Party, 1957–58, and named after Major Merle R. Dawson (d.1986), USA, leader of the Army-Navy Trail Party which established an oversnow route from Little America V to the site of Byrd StationByrd Station
Byrd Station refers to a research station established by the United States during the International Geophysical Year by the U.S. Navy during Operation Deep Freeze II in West Antarctica at 80°, 120°W...
in November–December 1956; Project Manager
Project manager
A project manager is a professional in the field of project management. Project managers can have the responsibility of the planning, execution, and closing of any project, typically relating to construction industry, architecture, computer networking, telecommunications or software...
for Ship Operations in the Office of Polar Programs, National Science Foundation
National Science Foundation
The National Science Foundation is a United States government agency that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National Institutes of Health...
(NSF), 1965-70.
Mount Giovinetto
Mount Giovinetto is the summit of a buttress-type mountain (4,090 m) located 2 nautical miles (3.7 km) north of Mount Ostenso in the main ridge of the Sentinel Range. Discovered by the Marie Byrd Land Traverse party, 1957-58, and named for Mario B. Giovinetto, glaciologist at Byrd StationByrd Station
Byrd Station refers to a research station established by the United States during the International Geophysical Year by the U.S. Navy during Operation Deep Freeze II in West Antarctica at 80°, 120°W...
in 1957.
Mount Goldthwait
Mount Goldthwait is a prominent mountain (3,815 m) located 2.5 nautical miles (4.6 km) south of Mount Dalrymple. Discovered by the Marie Byrd Land Traverse Party, 1957-58, and named for Richard P. Goldthwait, consultant, Technical Panel on Glaciology, U.S. National Committee for the IGYInternational Geophysical Year
The International Geophysical Year was an international scientific project that lasted from July 1, 1957, to December 31, 1958. It marked the end of a long period during the Cold War when scientific interchange between East and West was seriously interrupted...
, and later Director, Institute of Polar Studies, Ohio State University
Ohio State University
The Ohio State University, commonly referred to as Ohio State, is a public research university located in Columbus, Ohio. It was originally founded in 1870 as a land-grant university and is currently the third largest university campus in the United States...
.
Mount Hale
Mount Hale is a mountain (3,595 m) standing 1.5 mi NW of Mount Davis in the main ridge of the Sentinel Range. Discovered by the Marie Byrd Land Traverse party, 1957-58, under C.R. Bentley, and named for Daniel P. Hale, auroral physicist at Byrd Station and member of the traverse party.Mount Inderbitzen
Mount Inderbitzen is a mountain rising to over 2,600 m, located 12 miles (19 km) south-southeast of Mount CraddockMount Craddock
Mount Craddock is a large, bold mountain forming the south extremity of Craddock Massif in Sentinel Range, the highest mountain in Antarctica. It is linked by Karnare Col to Mount Strybing in the southern Sentinel Range...
and 1.5 miles (2.4 km) south of Mount Milton in the south part of the Sentinel Range. First mapped by USGS from surveys and U.S. Navy aerial photographs, 1957-59. 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) in 1994 after Anton L. Inderbitzen, Associate Chief Scientist, Division of Polar Programs, National Science Foundation
National Science Foundation
The National Science Foundation is a United States government agency that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National Institutes of Health...
(NSF), 1983–86; Head, Antarctic Staff, NSF, 1986–91; Deputy Assistant Director for Research, USGS, from 1991. At NSF, Inderbitzen was responsible for the coordination and planning of all scientific activities within the United States Antarctic Program
United States Antarctic Program
United States Antarctic Program is an organization of the United States government which has presence in the continent of Antarctica. It co-ordinates research and the operational support for research in the region...
(USAP), and for the formulation and enforcement of U.S. environmental regulations in Antarctica.
Mount Levack
Mount Levack is a mountain located 21 km (13 mi) east of Mount Ostenso in the central part of the Sentinel Range. First mapped by USGS from surveys and U.S. Navy air photos, 1957-59. Named by US-ACAN for Major Herbert T. LevackHerbert T. Levack
Col. Herbert T. Levack was a command pilot in the U.S. Air Force flying B-24s inWorld War II, and C-124s in Korea and Vietnam. He was also the Operations Officer for the first...
, United States Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
(USAF), who participated in establishing the South Pole Station in the 1956-57 season.
Mount Milton
Mount Milton is a mountain (3,000 m) located 11 mi SSE of Mount Craddock and 1.5 mi SE of Mount Southwick, in the southern part of the Sentinel Range. First mapped by USGS from surveys and U.S. Navy (USN) air photos, 1957-59. Named by US-ACAN for Patrick G. Milton, aviation machinist's mate, USN, who served as plane captain on a reconnaissance flight to these mountains on Jan. 28, 1958.Mount Ostenso
Mount Ostenso is a mountain (4,180 m) 2 nautical miles (3.7 km) south of Mount Giovinetto in the main ridge of the Sentinel Range. First mapped by the Marie Byrd Land Traverse Party (1957-58) led by C.R. Bentley, and named for Ned A. Ostenso, traverse seismologist at Byrd StationByrd Station
Byrd Station refers to a research station established by the United States during the International Geophysical Year by the U.S. Navy during Operation Deep Freeze II in West Antarctica at 80°, 120°W...
(1957) and a member of the party.
Mount Reimer
Mount Reimer is a mountain, 2,430 m, in the northern portion of the Sentinel Range, standing on the south side of Newcomer Glacier 5 mi SW of Mount Warren. Named by US-ACAN for John D. Reimer of U.S. Navy Squadron VX-6VX-6
Air Development Squadron Six was a United States Navy Air Development Squadron based at McMurdo Station, Antarctica...
, aerial photographer on flights over this range on Dec. 14-15, 1959.
Mount Schmid
Mount Schmid is a mountain on the south side of Embree GlacierEmbree Glacier
Embree Glacier is a 20 mi long glacier in the north-central part of Sentinel Range, Ellsworth Mountains, draining the eastern slopes of Mount Hale, Mount Davis and Mount Bentley, the northeast slopes of Mount Anderson, and the northwestern slopes of Probuda Ridge, flowing north-northeastwards and...
, rising 8 km east of Mount Goldthwait. Mapped by USGS from surveys and US Navy air photos, 1957-59. Named by the US-ACAN for Captain Ernest A. Schmid, USAF, who participated in the establishment of the IGY
International Geophysical Year
The International Geophysical Year was an international scientific project that lasted from July 1, 1957, to December 31, 1958. It marked the end of a long period during the Cold War when scientific interchange between East and West was seriously interrupted...
South Pole Station during the 1956-57 season.
Mount Segers
Mount Segers is a mountain on a ridgeRidge
A ridge is a geological feature consisting of a chain of mountains or hills that form a continuous elevated crest for some distance. Ridges are usually termed hills or mountains as well, depending on size. There are several main types of ridges:...
at the east side of the head of Crosswell Glacier
Crosswell Glacier
Crosswell Glacier is a glacier 10 nautical miles long, flowing north-northeast from Mount Shinn to enter Ellen Glacier, in the central part of Sentinel Range, Ellsworth Mountains. First mapped by United States Geological Survey from surveys and U.S. Navy air photos, 1957-59. Named by...
, 11 km (7 mi) east of Mount Tyree
Mount Tyree
Mount Tyree is the second highest mountain of Antarctica located 13 kilometres northwest of Vinson Massif , the highest peak on the continent....
, in the central part of the Sentinel Range. Discovered by US Navy Squadron VX-6 on photographic flights of Dec. 14-15, 1959, and mapped by USGS
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,...
from these photos. Named by US-ACAN
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...
for Chester W. Segers, a Navy cook and a member of the first wintering party at the South Pole Station during the IGY in 1957.
Mount Ulmer
Mount Ulmer is a prominent peak situated 2 miles north of Mount Washburn in the northern part of the Sentinel Range. It was discovered in his trans-Antarctic flight on November 23, 1935, by Lincoln EllsworthLincoln Ellsworth
Lincoln Ellsworth was an arctic explorer from the United States.-Birth:He was born on May 12, 1880 to James Ellsworth and Eva Frances Butler in Chicago, Illinois...
who called it "Mount Mary Louise Ulmer", after his wife. The peak was reidentified by comparing Ellsworth's photograph with those taken in 1959 by the U.S. Navy.
Mount Wyatt Earp
Mount Wyatt Earp is a mainly snow-covered peakSummit (topography)
In topography, a summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a local maximum in elevation...
, 2,370 m, standing 3 nautical miles (6 km) west-northwest of Mount Ulmer in the north part of the range. Discovered by Lincoln Ellsworth on his trans-Antarctic flight of November 23, 1935. Named by the US-ACAN for the ship Wyatt Earp, used by Ellsworth in four expeditions to Antarctica between 1933 and 1939.