page_title: Adelaide Island
section_title: Geography
hierarchical_section_title: Adelaide Island / Geography
caption_attribution_description: English: Mackay Point is a tiny peninsula (450 m at its widest point) protruding into Laubeuf Fjord from the Wormald Ice Piedmont on the eastern side of Adelaide Island, Antarctica. It lies 4 km NNE of the British Rothera Research Station.
context_page_description: Adelaide Island is a large, mainly ice-covered island, 139 kilometres long and 37 kilometres wide, lying at the north side of Marguerite Bay off the west coast of the Antarctic Peninsula. The Ginger Islands lie off the southern end. Mount Bodys is the easternmost mountain on Adelaide Island, rising to over 1,220 m. The island lies within the Argentine, British and Chilean Antarctic claims.
context_section_description: A number of features on and around Adelaide Island have been charted by various Antarctic expeditions, primarily the French Antarctic Expedition of 1909, under Charcot.
  Cape Mascart forms the northernmost extremity of Adelaide Island, Antarctica. It was discovered by Charcot's expedition, and named by him for French physicist Éleuthère Mascart.
  On the island's east coast, Landauer Point, marks the west side of the north entrance to Tickle Channel. It was mapped by the FIDS from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947–48, and the Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE), 1956–57. The point was named by the UK Antarctic Place-Names Committee (UK-APC) for Joseph K. Landauer, an American physicist.
  To the south is Mothes Point, 7 nautical miles (13 km) southwest of The Gullet. It was mapped by FIDS from RARE photos, and FIDASE in 1956–57. It was named by UK-APC for German glaciologist Hans Mothes.
  Continuing south, is Mackay Point  about 2 nautical miles (4 km) to the north-northeast of Rothera Point. It was surveyed by FIDS, 1961–62, and by a Royal Navy Hydrographic Survey Unit from HMS Endurance, 1976–77. The point was named by UK-APC in 1978 for BAS builder Donald C. Mackay.
  About 2 nmi (3.7 km) south is Rothera Point, marking the east side of the Ryder Bay. Rothera Point was named by UK-APC for FIDS surveyor John M. Rothera. The point is protected as Antarctic Specially Protected Area (ASPA) No.129 so that it would serve as a biological research site and control area against which the environmental impact of the adjacent Rothera Research Station could be monitored in an Antarctic fellfield ecosystem.
  On the southeast coast of the island, 5 nmi (9.3 km) east of Mount Gaudry, 6 nmi (11 km) wide Ryder Bay indents the coast to a depth of 4 nmi (7.4 km). The Leonie Islands lie across the mouth of this bay. The bay was resurveyed in 1936 by the British Graham Land Expedition (BGLE) under Rymill, and in 1948 by FIDS. The bay is named for Lisle C.D. Ryder, second mate on the Penola during the BGLE, 1934–37. Ives Bank is a submarine bank in the Bellingshausen Sea on the southern approaches to Ryder Bay.
  The southeast extremity of the island is Cape Alexandra, named by Charcot for Alexandra of Denmark, then Queen consort of England.
  Cape Adriasola is a distinctive ice-cliffed cape at the southwest end of Adelaide Island, 10 nautical miles (19 km; 12 mi) northwest of Avian Island. Charcot named it for an acquaintance in Punta Arenas.
caption: Mackay Point is a tiny peninsula (450 m at its widest point) protruding into Laubeuf Fjord from the Wormald Ice Piedmont on the eastern side of Adelaide Island.
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