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Alexander Island, which is also known as Alexander I Island, Alexander I Land, Alexander Land, Alexander I Archipelago, and Zemlja Alexandra I, is the largest island of Antarctica. It lies in the Bellingshausen Sea west of Palmer Land, Antarctic Peninsula from which it is separated by Marguerite Bay and George VI Sound. The George VI Ice Shelf entirely fills George VI Sound and connects Alexander Island to Palmer Land. The island partly surrounds Wilkins Sound, which lies to its west. Alexander Island is about 390 kilometres (240 mi) long in a north–south direction, 80 kilometres (50 mi) wide in the north, and 240 kilometres (150 mi) wide in the south. Alexander Island is the second-largest uninhabited island in the world, after Devon Island.
Thurston Island is an ice-covered, glacially dissected island, 215 km (134 mi) long, 90 km (56 mi) wide and 15,700 km2 (6,062 sq mi) in area, lying a short way off the northwest end of Ellsworth Land, Antarctica. It is the third-largest island of Antarctica, after Alexander Island and Berkner Island.
James Ross Island is a large island off the southeast side and near the northeastern extremity of the Antarctic Peninsula, from which it is separated by Prince Gustav Channel. Rising to 1,630 metres (5,350 ft), it is irregularly shaped and extends 64 km in a north–south direction. It was charted in October 1903 by the Swedish Antarctic Expedition under Otto Nordenskiöld, who named it for Sir James Clark Ross, the leader of a British expedition to this area in 1842 that discovered and roughly charted a number of points along the eastern side of the island. The style, "James" Ross Island is used to avoid confusion with the more widely known Ross Island in McMurdo Sound.
Snow Hill Island is an almost completely snowcapped island, 33 km (21 mi) long and 12 km (7.5 mi) wide, lying off the east coast of the Antarctic Peninsula. It is separated from James Ross Island to the north-east by Admiralty Sound and from Seymour Island to the north by Picnic Passage. It is one of several islands around the peninsula known as Graham Land, which is closer to Argentina and South America than any other part of the Antarctic continent.
Arrowsmith Peninsula is a cape about 40 miles (64 km) long on the west coast of Graham Land, west of Forel Glacier, Sharp Glacier and Lallemand Fjord, and northwest of Bourgeois Fjord, with Hanusse Bay lying to the northwest. It was surveyed by the Falkland Islands Dependencies Survey (FIDS) in 1955-58 and named for Edwin Porter Arrowsmith, Governor of the Falkland Islands.
Iapetus Nunatak is an isolated nunatak at the southwest margin of Satellite Snowfield, about midway between the Walton Mountains and the Staccato Peaks in southern Alexander Island, Antarctica. It was mapped by the Directorate of Overseas Surveys from satellite imagery supplied by the U.S. National Aeronautics and Space Administration in cooperation with the U.S. Geological Survey, and was named by the UK Antarctic Place-Names Committee from association with Saturn Glacier, after Iapetus, one of the satellites of Saturn.
Staccato Peaks is a series of rock peaks extending 11 miles (18 km) in a north–south direction, rising to about 940 m with Hageman Peak being the highest peak of the Staccato Peaks, rising from the snowfields 20 miles (32 km) south of the Walton Mountains in the south part of Alexander Island, Antarctica. The peaks were first sighted from the air by Lincoln Ellsworth on November 23, 1935, and mapped from photos taken on that flight by W.L.G. Joerg. Remapped from air photos taken by the Ronne Antarctic Research Expedition in 1947–48, by Searle of the Falkland Islands Dependencies Survey in 1960. The name, given by the United Kingdom Antarctic Place-Names Committee, refers to the precipitous and abrupt way in which the peaks rise from the surrounding snowfields and is associated with other musical names in the vicinity.
Astraea Nunatak is a nunatak 6 miles (10 km) south of Staccato Peaks in southern Alexander Island. It was mapped from trimetrogon air photography taken by the Ronne Antarctic Research Expedition, 1947–48, and from survey by the Falkland Islands Dependencies Survey, 1948–50, and named by the United Kingdom Antarctic Place-Names Committee after Astraea, one of the asteroids lying between the orbits of Mars and Jupiter.
Borchgrevink Nunatak is a nunatak 1.5 nautical miles (3 km) long which rises to 650 metres (2,130 ft), standing at the south side of the entrance to Richthofen Pass, on the east coast of Graham Land. It was discovered in 1902 by the Swedish Antarctic Expedition under Otto Nordenskiöld, who named it for C. E. Borchgrevink, leader of the British Antarctic Expedition, 1898–1900, to Victoria Land.
Citadel Bastion is a rocky, flat-topped, rocky elevation at the south side of the terminus of Saturn Glacier, facing towards George VI Sound and the Rymill Coast, situated on the east side of Alexander Island, Antarctica. Its maximum elevation is about 645 m. Citadel Bastion lies next to Hodgson Lake. This mountain was mapped from trimetrogon air photography taken by the Ronne Antarctic Research Expedition, 1947–48, and from survey by the Falkland Islands Dependencies Survey, 1948–50. The name applied by the UK Antarctic Place-Names Committee because it resembles a fortified structure with a watchtower at the end of a wall.
Nobby Nunatak is a nunatak, 270 m, standing 1 nautical mile (1.9 km) south of Lake Boeckella and 1 nautical mile (1.9 km) east of Mount Flora, at the northeast end of Antarctic Peninsula.
Mount Dowling is a small mountain overlooking the south coast of Thurston Island, about 13 nautical miles (24 km) east of Von der Wall Point. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1960–66, and was named by the Advisory Committee on Antarctic Names for Forrest L. Dowling, a geophysicist at Byrd Station, 1960–61.
Lizard Nunatak is a nunatak rising to about 800 metres (2,600 ft) situated within the Nichols Snowfield, in the northern portion of Alexander Island, Antarctica. It is situated 12 km east by north of Mount Kliment Ohridski and 9 km south-southeast of the summit of Landers Peaks in Sofia University Mountains, and 6.4 km southwest of Serpent Nunatak and 9.38 km north by west of Tegra Nunatak in Rouen Mountains. The feature was so named by the UK Antarctic Place-Names Committee in 1977 from its shape and in association with Serpent Nunatak lying to the northeast.
Mount Martine is a massive mountain, about 800 metres (2,600 ft) high, with a prominent rocky north face and ice-covered south slopes, overlooking the north shore of Charcot Island, south of Cheesman Island, in the east Bellinghausen Sea of Antarctica.
Stephenson Nunatak is a prominent, pyramid-shaped rock nunatak, rising to about 640 m, which rises 300 m above the surrounding ice at the northwest side of Kirwan Inlet in the southeast part of Alexander Island, Antarctica. Discovered and roughly surveyed in 1940-41 by Finn Ronne and Carl R. Eklund of the United States Antarctic Service. Resurveyed in 1949 by the Falkland Islands Dependencies Survey and named by the United Kingdom Antarctic Place-Names Committee for Alfred Stephenson, surveyor with the British Graham Land Expedition, who led a sledge party south into George VI Sound to about 72S in 1936. There happens to be another landform on Alexander Island which is named after Alfred Stephenson, that being Mount Stephenson, the highest point of Alexander Island rising to 2,987 m.
Selene Nunatak is a nunatak rising to about 1,200 m west of Lunar Crag, situated within the mountain range Planet Heights, in eastern Alexander Island, Antarctica. The nunatak was named in association with nearby Lunar Crag by the United Kingdom Antarctic Place-Names Committee in 1988 after Selene, the Greek goddess of the Moon.
Themis Nunatak is a very large, flat-topped nunatak lying 6 nautical miles (11 km) west-southwest of Mount Umbriel in the southern portion of Alexander Island, Antarctica. The nunatak was first mapped from trimetrogon air photography taken by Ronne Antarctic Research Expedition in 1947–48, and from survey by Falkland Islands Dependencies Survey in 1948–50. Named by United Kingdom Antarctic Place-Names Committee in association with nearby Saturn Glacier, Themis being one of the satellites of the planet Saturn, the sixth planet of the Solar System.
Tethys Nunataks is a minor group of about five snow-free nunataks, lying 2 nautical miles (3.7 km) northeast of Stephenson Nunatak in the southeast corner of Alexander Island, Antarctica. Presumably first seen by Finn Ronne and Carl R. Eklund of the United States Antarctic Service who sledged through George VI Sound in 1940–41. Surveyed in 1949 by the Falkland Islands Dependencies Survey and named by the United Kingdom Antarctic Place-Names Committee for association with nearby Saturn Glacier, Tethys being one of the satellites of the planet Saturn, the sixth planet of the Solar System.
Recluse Nunatak is an isolated rock exposure lying on the Handel Ice Piedmont, midway between Haydn Inlet and the Colbert Mountains in the west-central portion of Alexander Island, Antarctica. The nunatak was first mapped from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947–48, by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960. The name given by the United Kingdom Antarctic Place-Names Committee (UK-APC) suggests the isolated position of the nunatak, considering this landform is situated far away from other landforms of Alexander Island.
References
This article incorporates public domain material from "Ceres Nunataks". Geographic Names Information System . United States Geological Survey.- Archived 18 May 2013 at the Wayback Machine
