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. 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.
Dundee Island is an ice-covered island lying east of the northeastern tip of Antarctic Peninsula and south of Joinville Island.
Tower Island is an Antarctic island 9 kilometres (5 nmi) long and 305 m (1,001 ft) high. It marks the north-east extent of Palmer Archipelago. It lies 37 kilometres (20 nmi) north-east of Trinity Island, separated by Gilbert Strait. Both islands are separated from the Davis Coast to the south by Orléans Strait, running northeast-southwest. The Pearl Rocks lie off the West Coast of Tower Island.
Coronation Island is the largest of the South Orkney Islands, 25 nautical miles (46 km) long and from 3 to 8 nautical miles wide. The island extends in a general east-west direction, is mainly ice-covered and comprises numerous bays, glaciers and peaks, the highest rising to 1,265 metres (4,150 ft).
Nelson Rock is an uninhabited solitary island, being essentially a dark rock which is partly ice-covered and lies 5.6 km (3 nmi) north of Williams Rocks, off the coast of Mac Robertson Land in Holme Bay. The Rock was mapped by Robert G. Dovers of the Australian National Antarctic Research Expeditions (ANARE) in 1954. Nelson Rock was named by the Antarctic Names Committee of Australia (ANCA) for Robert Edward Kelvin Nelson, a weather observer at Mawson Station in 1962, who assisted with the triangulation of Nelson Rock and the erection of a beacon.
The Windmill Islands are an Antarctic group of rocky islands and rocks about 11.1 kilometres (6 nmi) wide, paralleling the coast of Wilkes Land for 31.5 kilometres (17 nmi) immediately north of Vanderford Glacier along the east side of Vincennes Bay. Kirkby Shoal is a small shoal area with depths of less than 18 metres (59 ft) extending about 140 metres (459 ft) westwards and SSW, about 3.4 kilometres (2.1 mi) from the summit of Shirley Island, Windmill Islands, and 0.24 kilometres (0.15 mi) NW of Stonehocker Point, Clark Peninsula.
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 South America than any other part of the Antarctic continent.
The Ibar Rocks are two rocks located 0.4 kilometres (0.2 nmi) east of Bonert Rock and 1 kilometre (0.6 nmi) southeast of Canto Point, Greenwich Island, in the South Shetland Islands. The names "Islote Ibar" and "Islote Teniente Ibar" appearing on Chilean hydrographic charts in the 1950s refer to the larger and western rock. The recommended name "Ibar Rocks" includes a submerged outlier to the northeast of the larger rock. Teniente (lieutenant) Mario Ibar P. signed the official act of inauguration of the Chilean Captain Arturo Prat Base on Greenwich Island in 1947.
The Dion Islands are a group of small islands and rocks lying in the northern part of Marguerite Bay, 11 kilometres (6 nmi) south-west of Cape Alexandra, Adelaide Island, off the west coast of the Antarctic Peninsula. They were discovered by the French Antarctic Expedition, 1908–10, and named by Jean-Baptiste Charcot for the Marquis Jules-Albert de Dion, who donated three motor sledges and whose De Dion-Bouton works produced equipment for the expedition.
Gilbert Strait is a strait between Trinity Island and Tower Island in the Palmer Archipelago. The strait was named by a British expedition 1828-31, under Foster, for Davies Gilbert, President of the Royal Society from 1827–30, and of the committee which formulated the objectives of the expedition. The strait was mapped by the Swedish Antarctic Expedition (SAE) of 1901–04, under Otto Nordenskjöld.
The Flatvaer Islands, also known as the Ongul Islands, are a group of small islands lying at the east side of the entrance of Lützow-Holm Bay, 4 km from the coastline of Antarctica. They were mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition (LCE), 1936–37. Many of the islands and their features were subsequently named by members of the Japanese Antarctic Research Expedition (JARE); unless otherwise noted, features noted in this article were named by JARE.
Borceguí Island is an ice-free island in the South Shetland Islands, midway between Cape Yelcho and the Gibbous Rocks, 2 kilometres (1 nmi) off the north coast of Elephant Island. The name was applied by the command of the Argentine sea-going tug Chiriguano in the 1954–55 cruise; in Spanish "borceguí" means half-boot and describes the shape of the island.
The Brien Rocks are a group of prominent rock outcrops lying 6 nautical miles (11 km) west of the Caudal Hills, in Victoria Land, Antarctica. They were mapped by the United States Geological Survey from surveys and from U.S. Navy air photos, 1960–64, and were named by the Advisory Committee on Antarctic Names for Robert J. Brien, an aviation electronics technician with U.S. Navy Squadron VX-6 at McMurdo Station, Hut Point Peninsula, Ross Island, 1966. These rock formations lie situated on the Pennell Coast, a portion of Antarctica lying between Cape Williams and Cape Adare.
Bulbur Glacier is a glacier in south-central Thurston Island; it flows south along the west side of Boker Rocks into O'Dowd Cove. It was named by the Advisory Committee on Antarctic Names after E.R. Bulbur, Photographer's Mate in the Eastern Group of U.S. Navy Operation Highjump, which obtained aerial photographs of Thurston Island and adjacent coastal areas, 1946–47.
The Knight Rocks are a group of small rocks which lie 8 kilometres (4.5 nmi) west-northwest of the south end of Snow Island, in the South Shetland Islands. The rocks were so named by the UK Antarctic Place-Names Committee following a survey by Lieutenant Commander F.W. Hunt, Royal Navy, in 1951–52, because of their proximity to Castle Rock.
The Eden Rocks are two rocks lying 1.5 km off the east coast of Dundee Island, at the northern end of the Antarctic Peninsula. A small island was reported there on 30 December 1842 by Captain James Clark Ross of the Royal Navy, who named it "Eden Island" for Captain Charles Eden. Following a survey by the Falkland Islands Dependencies Survey in 1953, it was reported that the feature consists of two rocky islets rising to about 90 m in height and lying close together.
Gourdin Island is the largest island (124 ha) in a group of islands and rocks 2 km (1 nmi) north of Prime Head, the northern tip of the Antarctic Peninsula. It was discovered by a French expedition, 1837–40, under Captain Jules Dumont d'Urville, and named by him for Ensign Jean Gourdin of the expedition ship Astrolabe. The island was reidentified and charted by the Falkland Islands Dependencies Survey in 1945–47.
The Moss Islands are a group of small islands and rocks lying east of Midas Island and north of Apéndice Island in Hughes Bay, off the west coast of Graham Land, Antarctica. They were first charted in detail and given the descriptive name "Moos Inseln" by the Swedish Antarctic Expedition under Otto Nordenskiöld in 1902.
Hauken Rock is a rock lying nearly 1 nautical mile (2 km) east of the Ornen Rocks and 2 nautical miles (4 km) northeast of Cape Melville, the eastern extremity of King George Island, in the South Shetland Islands. It was named by the UK Antarctic Place-Names Committee in 1960 from association with Ornen Rocks. Hauken and Ørnen, the first two modern whale catchers, accompanied the floating factory ship Admiralen to the South Shetland Islands in January–February 1906.
The Henkes Islands are a group of small islands and rocks 4 kilometres (2 nmi) in extent, lying 2 kilometres (1 nmi) southwest of Avian Island, close off the southern extremity of Adelaide Island, Antarctica. The islands were discovered by the French Antarctic Expedition, 1908–10, under Jean-Baptiste Charcot, and named by him for one of the Dutch directors of the Magellan Whaling Company at Punta Arenas. Charcot applied the name to the scattered rocks and islands between Cape Adriasola and Cape Alexandra, and the name was restricted to the group described by the UK Antarctic Place-Names Committee (UKAPC) following definitive mapping by the British Antarctic Survey (BAS) in 1961 and the British Royal Navy Hydrographic Survey (BRNHS) in 1963. All of the islands in the group were named by UKAPC.
