The South Orkney Islands are a group of islands in the Southern Ocean, about 604 km (375 mi) north-east of the tip of the Antarctic Peninsula and 844 km (524 mi) south-west of South Georgia Island. They have a total area of about 620 km2 (240 sq mi). The islands are claimed both by Britain, and by Argentina as part of Argentine Antarctica. Under the 1959 Antarctic Treaty, sovereignty claims are held in abeyance.
Thurston Island is a largely ice-covered, glacially dissected island, 135 nautical miles long and 55 nautical miles wide, lying between Amundsen Sea and Bellingshausen Sea a short way off the northwest end of Ellsworth Land, Antarctica. The island is separated from the mainland by Peacock Sound, which is occupied by the west portion of Abbot Ice Shelf.
The Axel Heiberg Glacier in Antarctica is a valley glacier, 30 nautical miles long, descending from the high elevations of the Antarctic Plateau into the Ross Ice Shelf between the Herbert Range and Mount Don Pedro Christophersen in the Queen Maud Mountains.
The Byrd Glacier is a major glacier in Antarctica, about 136 km (85 mi) long and 24 km (15 mi) wide. It drains an extensive area of the Antarctic plateau, and flows eastward to discharge into the Ross Ice Shelf.
The Darwin Glacier is a large glacier in Antarctica. It flows from the polar plateau eastward between the Darwin Mountains and the Cook Mountains to the Ross Ice Shelf. The Darwin and its major tributary the Hatherton are often treated as one system, the Darwin–Hatherton.
Tucker Glacier is a major valley glacier of Victoria Land, Antarctica, about 90 nautical miles long, flowing southeast between the Admiralty Mountains and the Victory Mountains to the Ross Sea. There is a snow saddle at the glacier's head, just west of Homerun Range, from which the Ebbe Glacier flows northwestward.
The Executive Committee Range is a range consisting of five major volcanoes, which trends north-south for 50 nautical miles along the 126th meridian west, in Marie Byrd Land, Antarctica.
Joinville Island group is a group of antarctic islands, lying off the northeastern tip of the Antarctic Peninsula, from which Joinville Island group is separated by the Antarctic Sound.
The snow petrel is the only member of the genus Pagodroma. It is one of only three birds that have been seen at the Geographic South Pole, along with the Antarctic petrel and the south polar skua, which has the most southerly breeding sites of any bird, inland in Antarctica.
The Guest Peninsula is a snow-covered peninsula about 45 nautical miles long between the Sulzberger Ice Shelf and Block Bay, in the northwest part of Marie Byrd Land, Antarctica.
Liv Glacier is a steep valley glacier, 40 nautical miles long, emerging from the Antarctic Plateau just southeast of Barnum Peak and draining north through the Queen Maud Mountains to enter Ross Ice Shelf between Mayer Crags and Duncan Mountains. It was discovered in 1911 by Roald Amundsen, who named it for the daughter of Fridtjof Nansen.
Achaean Range is a mountain range rising to 2,577 metres (8,455 ft) in the central part of Anvers Island in the Palmer Archipelago. It is bounded on the east by Iliad Glacier and Trojan Range and on the west by Marr Ice Piedmont, and extends northwest from Mount Agamemnon for 10 kilometres (6 mi), curving northeast for a further 19 km (12 mi) to Mount Nestor. Surveyed by the Falkland Islands Dependencies Survey (FIDS) in 1955 and named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the Achaeans, one of the opposing forces of the Trojan War in Homer's Iliad.
The Porthos Range is the second range south in the Prince Charles Mountains of Antarctica, extending for about 30 miles in an east-to-west direction between Scylla Glacier and Charybdis Glacier. First visited in December 1956 by the Australian National Antarctic Research Expeditions (ANARE) southern party under W.G. Bewsher (1956-57) and named after Porthos, a character in Alexandre Dumas, père's novel The Three Musketeers, the most popular book read on the southern journey.
Carroll Inlet is an inlet, 40 nautical miles long and 6 nautical miles wide, trending southeast along the coast of Ellsworth Land, Antarctica, between the Rydberg Peninsula and Smyley Island. The head of the inlet is divided into two arms by the presence of Case Island and is bounded to the east by Stange Ice Shelf.
Condor Peninsula is a mountainous, ice-covered peninsula, 30 nautical miles long and 10 to 15 nautical miles wide, between Odom Inlet and Hilton Inlet on the east coast of Palmer Land, Antarctica.
Violante Inlet is an ice-filled inlet 16 nautical miles long, in an east–west direction, and 12 to 15 nautical miles wide, lying between Cape Fanning and Cape Herdman along the east coast of Palmer Land, Antarctica.
Cape Hansen is a cape which separates Marshall Bay and Iceberg Bay on the south coast of Coronation Island, in the South Orkney Islands, Antarctica. The name appears on a chart based upon a running survey of the islands in 1912–13 by Petter Sørlle, a Norwegian whaling captain.
The McLaughlin Cliffs are abrupt rock cliffs that overlook George VI Sound between Armstrong Glacier and Conchie Glacier, in western Palmer Land, Antarctica. They were named by the Advisory Committee on Antarctic Names for Lieutenant Donald J. McLaughlin, Civil Engineer Corps, U.S. Navy Reserve, officer-in-charge of Palmer Station in 1970. The steep cliffs provide nesting sites for a colony of snow petrels.
The Smith Peninsula is an ice-covered, "dog-legged" peninsula 25 nautical miles long and 10 nautical miles wide, extending in an easterly direction between Keller Inlet and Nantucket Inlet from the east coast of Palmer Land, Antarctica.
This article incorporates public domain material from "Mount Nivea". Geographic Names Information System . United States Geological Survey. 
