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Tourmaline Plateau
Tourmaline Plateau (-74.16667°N, 163.45°W) is an ice-covered plateau in the central part of the Deep Freeze Range, bounded by the Howard Peaks and the peaks and ridges which trend north-south from Mount Levick, in Victoria Land. So named by the Northern Party of New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1965-66, because of the quantities of tourmaline-granite found there.

Tournachon Peak
Tournachon Peak (-64.31667°N, -61.08333°W) is a peak, 860 m, rising south of Spring Point on the west coast of Graham Land. Photographed by the Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE) in 1956-57, and mapped from these photos by the Falkland Islands Dependencies Survey (FIDS). Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for Gaspard F. Tournachon (1820-1910), known professionally as Nadar, French portrait photographer and aeronaut who took the first air photos from a captive balloon in 1858 and suggested their use for mapmaking.

Tousled Peak
Tousled Peak (-73.18333°N, 169.01667°W) is a small ice-covered peak, 1,220 m, situated 3.5 nautical miles (6 km) northwest of the summit of Mount Lubbock in the south end of Daniell Peninsula, Victoria Land. The name given by New Zealand Antarctic Place-Names Committee (NZ-APC) in 1966 is descriptive of the exceptionally broken ice summit.

Tow Bay
Tow Bay (-57.03333°N, -26.7°W) is a small bay 0.2 nautical miles (0.4 km) south of Vulcan Point on the west side of Candlemas Island, in the South Sandwich Islands. Charted and named in 1930 by DI personnel on the Discovery II.

Tower Hill
Tower Hill (-63.7°N, -60.75°W) is a sharp conical summit, 1,125 m, surmounting the northwest part of Trinity Island in the Palmer Archipelago. The origin of the name is not known, but it may be associated with the voyage in 1824-25 of the British sealer Sprightly under Captain Edward Hughes.

Tower Island
Tower Island (-63.55°N, -59.85°W) is an island 5 nautical miles (9 km) long and 305 m high, lying 20 nautical miles (37 km) northeast of Trinity Island and marking the northeast extent of Palmer Archipelago. Named on January 30, 1820, by Edward Bransfield, Master, Royal Navy, who described it as a round island. == See also == * List of antarctic and sub-antarctic islands

Tower Peak
Tower Peak (-64.38333°N, -59.15°W) is a peak, 855 m, whose rock exposure stands out clearly from an evenly contoured icefield 5 nautical miles (9 km) northwest of Longing Gap, in northern Graham Land. First charted and given this descriptive name by the Falkland Islands Dependencies Survey (FIDS), 1945.

The Tower
The Tower (-62.21667°N, -58.5°W) is a mountain, 345 m, which is snow covered except at the summit, standing close west of Demay Point at the west side of the entrance to Admiralty Bay, King George Island, in the South Shetland Islands. Charted and named "La Tour" (The Tower) by the French Antarctic Expedition, 1908-10, under Charcot.

Towle Glacier
Towle Glacier (-76.63333°N, 161.08333°W) is a glacier in the Convoy Range of Victoria Land, draining northeast between Eastwind and Elkhorn Ridges into the Fry Glacier. Mapped in 1957 by the New Zealand Northern Survey Party of the Commonwealth Trans-Antarctic Expedition (1956-58) and named for the USNS Private John R. Towle, an American freighter which carried a large proportion of the New Zealand stores south in December 1956.

Towle Point
Towle Point (-77.45°N, 169.23333°W) is a point 1 nautical mile (1.9 km) north of Post Office Hill that marks the northeast extremity of Ross Island. In association with the names of expeditionary ships grouped on this island, named after USNS Private John R. Towle, a ship that carried cargo to this area in support of United States Antarctic Program (USAP) in at least 18 seasons, 1956-80.

Towle Valley
Towle Valley (-76.68333°N, 160.75°W) is the deep valley formerly occupied by the head of Towle Glacier, lying immediately west of Towle Glacier in the Convoy Range of Victoria Land. Mapped in 1957 by the New Zealand Northern Survey Party of the Commonwealth Trans-Antarctic Expedition (1956-58) and named by them for the USNS a large part of the New Zealand stores south in December 1956.

Towles Glacier
Towles Glacier (-72.41667°N, 169.08333°W) is a glacier descending from the western slopes of Mount Humphrey Lloyd to enter Tucker Glacier northwest of Trigon Bluff, in Victoria Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-62. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant William J. Towles, U.S. Navy, medical officer at Hallett Station, 1960.

Townrow Peak
Townrow Peak (-76.63333°N, 159.58333°W) is a prominent outlier of the Tilman Ridge in the Allan Hills, Victoria Land. Reconnoitered by the New Zealand Antarctic Research Program (NZARP) Allan Hills Expedition (1964) and named after J.A. Townrow of the University of Tasmania, palaeobotanist with the expedition.

Toynbee Glacier
Toynbee Glacier (-69.58333°N, -69.58333°W) is a glacier in northeast Alexander Island, 17 nautical miles (31 km) long and 5 nautical miles (9 km) wide, between the mountains of the Douglas Range on the west and Mount Tyrrell and Mount Tilley on the east. It flows north from Mount Stephenson to George VI Sound. First photographed from the air in 1937 by the British Graham Land Expedition (BGLE) under Rymill. Surveyed in 1948 by the Falkland Islands Dependencies Survey (FIDS) and named for Patrick A. Toynbee, FIDS air pilot at Stonington Island in 1948 and 1949.

Trabucco Cliff
Trabucco Cliff (-76.61667°N, -118.01667°W) is a cliff at the tip of the broad spur which forms the northeast extremity of Mount Rees in the Crary Mountains. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photography, 1959-66. Named by Advisory Committee on Antarctic Names (US-ACAN) for William J. Trabucco, United States Antarctic Research Program (USARP) ionospheric physicist at McMurdo Station, 1969, and Siple Station, 1973.

Trachyte Hill
Trachyte Hill (-77.28333°N, 166.41667°W) is a prominent hill, 470 m, just south of Shell Glacier in the center of the ice-free area on the lower west slopes of Mount Bird on Ross Island. Mapped and so named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1958-59, because of the rock type composing the hill.

Tractor Corner
Tractor Corner (-77.46667°N, 162.93333°W) is a

Tracy Glacier
Tracy Glacier (-65.95°N, 102.33333°W) is a channel glacier flowing to the Shackleton Ice Shelf 4 nautical miles (7 km) southwest of Cape Elliott. Delineated from aerial photographs taken by U.S. Navy Operation Highjump, 1946-47. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Lloyd W. Tracy, U.S. Navy, pilot with U.S. Navy Operation Windmill, 1947-48, who assisted in operations which resulted in the establishment of astronomical control stations from Wilhelm II Coast to Budd Coast.

Tracy Point
Tracy Point (-66.3°N, 110.45°W) is the westernmost point of Beall Island in the Windmill Islands. First mapped from air photos taken by U.S. Navy Operation Highjump and Operation Windmill in 1947 and 1948. Named by the Advisory Committee on Antarctic Names (US-ACAN) for Radioman Gordon F. Tracy, U.S. Navy, a member of the Wilkes Station party of 1958.

Trafalgar Glacier
Trafalgar Glacier (-72.46667°N, 168.41667°W) is a tributary glacier about 30 nautical miles (60 km) long, flowing east in the Victory Mountains to join Tucker Glacier below Bypass Hill, in Victoria Land. Named by New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1957-58, in association with the Victory Mountains and after the famous British naval victory of 1805.

Traffic Circle (Antarctica)
Traffic Circle (-68.61667°N, -66°W) is a glacier-filled expanse 500 m high, situated south of Mount Ptolemy and medially on Antarctic Peninsula between Marguerite Bay and Mobiloil Inlet. Hub Nunatak rises from the center of the Traffic Circle. From this position, five glacial troughs radiate like the spokes of a wheel. One connects on the north with Gibbs Glacier and Neny Glacier, leading to Neny Fjord. Another connects on the west with Lammers Glacier and Windy Valley, leading to Mikkelsen Bay. A third, Cole Glacier, trends southwest along Godfrey Upland toward the Wordie Ice Shelf area. The fourth, Weyerhaeuser Glacier, trends southward toward Wakefield Highland and connects with glaciers leading westward to Wordie Ice Shelf. The fifth, Mercator Ice Piedmont, is nourished by the outflow from Weyerhaeuser, Cole and Gibbs Glaciers; it broadens as it descends eastward to the head of Mobiloil Inlet. Discovered in 1940 by members of the East Base party of the United States Antarctic Service (USAS), 1939-41, who used this system of troughs in traveling across the upland, hence the name Traffic Circle.

Tragic Corner
Tragic Corner (-68°N, -66.8°W) is a bluff rising to about 750 m and marking the northeast end of Boulding Ridge, located between Todd Glacier and McClary Glacier on Fallieres Coast. So named by United Kingdom Antarctic Place-Names Committee (UK-APC) because T.J. Allan and J.F. Noel died in the vicinity as a result of an accident on a sledge journey from Stonington Island in May 1966.

Trail Glacier
Trail Glacier (-73.56667°N, 61.58333°W) is a broken mountain glacier on the southern side of Mount Menzies, about 2 nautical miles (3.7 km) from the summit. It is about 5 nautical miles (9 km) long and 3 nautical miles (6 km) wide. The glacier flows from a snowfield at about 2,750 m down a steep slope for at least 900 m vertically, then spreads out and merges with the ice sheet a few mi from the south side of the mountain. Mapped from ANARE (Australian National Antarctic Research Expeditions) air photos and surveys of the Prince Charles Mountains, 1960-61. Named by Antarctic Names Committee of Australia (ANCA) for D.S. Trail, geologist who led an ANARE field party to this feature in December 1961.

Trail Inlet
Trail Inlet (-68.08333°N, -65.33333°W) is an ice-filled inlet which recedes southwest 15 nautical miles (28 km) between Three Slice Nunatak and Cape Freeman, on the east coast of Graham Land. The inlet was sighted by Sir Hubert Wilkins on his flight of December 20, 1928. The width of Graham Land is reduced to 20 nautical miles (37 km) between the heads of Trail Inlet and Neny Fjord. So named by the US-SCAN because it was a natural route of travel for flights and sledge trips from the East Base of the United States Antarctic Service (USAS), 1939-41, to the east coast of Graham Land.

Mount Trail
Mount Trail (-67.2°N, 50.85°W) is a mountain on the northeast side of Auster Glacier, at the head of Amundsen Bay in Enderby Land. Plotted from air photos taken from ANARE (Australian National Antarctic Research Expeditions) aircraft in 1956. Named by Antarctic Names Committee of Australia (ANCA) for D.S. Trail, geologist at Mawson Station in 1961.

Trainer Glacier
Trainer Glacier (-72.56667°N, 167.48333°W) is a glacier 7 nautical miles (13 km) west of Rudolph Glacier, flowing northeast to enter Trafalgar Glacier in the Victory Mountains, Victoria Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-62. Named by Advisory Committee on Antarctic Names (US-ACAN) for Charles Trainer, meteorologist and senior U.S. representative at Hallett Station, 1960.

Trajer Ridge
Trajer Ridge (-68.56667°N, 78.5°W) is a rock ridge about 125 m high at the south side of the base of Breidnes Peninsula, Vestfold Hills. The region was photographed by U.S. Navy Operation Highjump (1946-47), ANARE (Australian National Antarctic Research Expeditions) (1954, 1957 and 1958) and the Soviet Antarctic Expedition (1956). Named by Antarctic Names Committee of Australia (ANCA) for F.L. Trajer, weather observer at Davis Station (1961) who, with M. Hay, visited the feature on foot on November 4, 1961.

Tramway Ridge
Tramway Ridge (-77.51667°N, 167.1°W) is a ridge that rises to c.3450 m in the northwest part of the summit caldera of Mount Erebus, Ross Island. The ridge is formed by the levees (banks on the side) of a young lava flow. The appearance of the feature is suggestive of a set of railway or tram lines.

Mount Tranchant
Mount Tranchant (-65.23333°N, -64.08333°W) is a small mountain or hill directly on the west coast of Graham Land. The feature marks the south side of the terminus of Wiggins Glacier. First charted by the French Antarctic Expedition, 1908-10, under J.B. Charcot who gave the descriptive name "Mont Tranchant" (sharp mountain or edge mountain).

Tranquil Lake
Tranquil Lake (-60.7°N, -45.65°W) is a cirque lake fed by meltwater from the local ice cover, lying between Amos Lake and Snow Hills on Signy Island, South Orkney Islands. The lake was so named by United Kingdom Antarctic Place-Names Committee (UK-APC), 1981, in reference to its sheltered position.

Tranquillity Valley
Tranquillity Valley (-82.6°N, -52.91667°W) is a snow-covered valley between Hannah Peak and Cairn Ridge in the west part of Dufek Massif, Pensacola Mountains. The name was proposed by Arthur B. Ford, United States Geological Survey (USGS) geologist, leader of several USGS field parties to the Pensacola Mountains, 1965-79. Named from its typical weather conditions, the valley being protected from strong winds most of the time. The USGS snowmobile parties coming from cold, windy areas found welcome refuge in this valley. The name is also in accord with nearby Enchanted Valley to indicate the general beauty of this part of Dufek Massif.

Transantarctic Mountains
Transantarctic Mountains (-85°N, -175°W) is the mountains and ranges which extend with some interruptions between Cape Adare and Coats Land, these mountains serving as the division between East Antarctica and West Antarctica. Included are the continuous but separately named mountain groups along the west side of Ross Sea and the western and southern sides of Ross Ice Shelf; also the Horlick Mountains, the Thiel Mountains, Pensacola Mountains, Shackleton Range and Theron Mountains. This purely descriptive name was recommended by the Advisory Committee on Antarctic Names (US-ACAN) in 1962 and has since gained international acceptance.

Transit Ridge
Transit Ridge (-77.93333°N, 163.08333°W) is a ridge, 4 nautical miles (7 km) long, extending east from Royal Society Range between Spring Glacier and Mitchell Glacier, in Victoria Land. The name is one of a group in the area associated with surveying applied in 1993 by New Zealand Geographic Board (NZGB). Named from transit theodolite, a telescope that can be rotated through the vertical position.

Transition Glacier
Transition Glacier (-70.43333°N, -68.81667°W) is a glacier on the east coast of Alexander Island, 8 nautical miles (15 km) long and 2 nautical miles (3.7 km) wide, which flows east to George VI Sound along the north side of Block Mountain and Tilt Rock. First photographed from the air on November 23, 1935, by Lincoln Ellsworth and mapped from these photos by W.L.G. Joerg. Surveyed in 1949 by the Falkland Islands Dependencies Survey (FIDS), and so named by them because this glacier marks the transition between igneous rocks to the north and sedimentary rocks to the south.

Transverse Island
Transverse Island (-67.33333°N, 59.31667°W) is an island between Fold Island and Keel Island on the east side of Stefansson Bay, off the coast of Enderby Land. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Tverrholmen (the transverse islet). Seen by an ANARE (Australian National Antarctic Research Expeditions) party in 1956. The translated form of the name recommended by Antarctic Names Committee of Australia (ANCA) has been approved. == See also == * List of antarctic and sub-antarctic islands

Tranter Glacier
Tranter Glacier (-82.53333°N, 161.75°W) is a glacier in the north part of Queen Elizabeth Range, draining into Nimrod Glacier between Mount Chivers and Mount Boman. Mapped by the United States Geological Survey (USGS) from tellurometer surveys and Navy air photos, 1960-62. Named by Advisory Committee on Antarctic Names (US-ACAN) for David L. Tranter, United States Antarctic Research Program (USARP) glaciologist at Roosevelt Island, 1962-63.

Traub Glacier
Traub Glacier (-62.46667°N, -59.78333°W) is a glacier flowing east into Discovery Bay, Greenwich Island, South Shetland Islands. Named by the Chilean Antarctic Expedition, 1947, after Lieutenant Noberto Traub, a member of the expedition. Not: Gran Glacier Teniente Traub, Gran Glacier Traub.

Traversay Islands
Traversay Islands (-56.6°N, -27.71667°W) is a group of three islands, consisting of Zavodovski, Leskov, and Visokoi Islands, at the north end of the South Sandwich Islands. The group was discovered in 1819 by a Russian expedition under Bellingshausen, who named them for Jean-Baptiste Prevost de Sansac, Marquis de Traversay (1754-1831), French naval officer who was sent by King Louis XVI, at the request of Empress Catherine II, to join the Russian navy in 1791. He was Minister of Naval Affairs at St. Petersburg, 1811-31, and chief promoter of Bellingshausen's Antarctic voyage. The name was previously transliterated as Traverse because it was incorrectly thought that the man commemorated was a Russian. == See also == * List of antarctic and sub-antarctic islands

Traverse Mountains
Traverse Mountains (-69.95°N, -67.9°W) is a group of almost ice-free mountains, rising to about 1,550 m, and including McHugo Peak, Mount Noel, Mount Allan and Mount Eissinger, between Eureka Glacier and Riley Glacier, east of Warren Ice Piedmont, in western Palmer Land. These mountains were first photographed from the air on November 23, 1935, by Lincoln Ellsworth and were mapped from these photographs by W.L.G. Joerg. First surveyed in 1936 by the British Graham Land Expedition (BGLE) under Rymill and resurveyed in 1948 by the Falkland Islands Dependencies Survey (FIDS). The name was first used by BGLE sledging parties because the mountains are an important landmark in the overland traverse from the Wordie Ice Shelf, down Eureka Glacier, to George VI Sound.

Mount Treadwell
Mount Treadwell (-77.01667°N, -144.85°W) is a mountain (820 m) at the southeast extremity of the Swanson Mountains, in the Ford Ranges of Marie Byrd Land. Mapped by United States Antarctic Service (USAS) (1939-41) and by United States Geological Survey (USGS) from surveys and U.S. Navy air photos (1959-65). Named in 1969 by Advisory Committee on Antarctic Names (US-ACAN) for Captain T.K. Treadwell, U.S. Navy, who earlier had been Deputy Commander as well as Commander, U.S. Naval Oceanographic Office.

Mount Treatt
Mount Treatt (-68°N, 56.8°W) is the easternmost of three peaks rising sharply from the ice plateau about 9 nautical miles (17 km) southeast of Mount Cook of the Leckie Range. Plotted from ANARE (Australian National Antarctic Research Expeditions) air photos. Named for G. Treatt, helicopter pilot with the 1965 ANARE (Nella Dan), led by Phillip Law.

Treble Peak
Treble Peak (-54.11667°N, -36.75°W) is a peak with three summits rising to about 610 m, situated east of Fortuna Bay and 0.5 nautical miles (0.9 km) south of Mount Harper on the north coast of South Georgia. Charted and named descriptively by DI personnel in 1929.

Trench Glacier
Trench Glacier (-70.2°N, -69.18333°W) is a deeply entrenched glacier on the east coast of Alexander Island, 6 nautical miles (11 km) long and 2 nautical miles (3.7 km) wide, which flows east into George VI Sound immediately south of Mount Athelstan. The mouth of this glacier was first photographed from the air on November 23, 1935, by Lincoln Ellsworth, and it was mapped from these photos by W.L.G. Joerg. Trench Glacier was surveyed in 1948 and 1949 by the Falkland Islands Dependencies Survey (FIDS), who applied this descriptive name.

Trendall Crag
Trendall Crag (-54.8°N, -35.98333°W) is a mountain crag, 1,005 m, overlooking the north side of Drygalski Fjord at the southeast end of South Georgia. Surveyed by the SGS in the period 1951-57, and named for Alec F. Trendall, geologist of the SGS, 1951-52 and 1953-54.

Trenholm Point
Trenholm Point (-75.43333°N, -142.38333°W) is an ice-covered point 8 nautical miles (15 km) northwest of Eldred Point on the coast of Marie Byrd Land. It marks the northern end of the peninsula between Holcomb Glacier and El-Sayed Glacier. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photography, 1959-65. Named by Advisory Committee on Antarctic Names (US-ACAN) for William L. Trenholm, glaciologist at Byrd Station in three summer seasons, 1967-70.

Trepassey Bay
Trepassey Bay (-63.46667°N, -56.96667°W) is a bay 0.8 nautical miles (1.5 km) wide, lying on the east side of Tabarin Peninsula 3.5 nautical miles (6 km) southeast of Hope Bay. First surveyed by the Falkland Islands Dependencies Survey (FIDS) and by E. Burden, Master of the Trepassey, from that vessel in 1947. Resurveyed in 1955 by the FIDS. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the 1946-47. The vessel was used for the relief of the station at Hope Bay in both seasons and for a survey of Antarctic Sound during the second one.

Trepassey Island
Trepassey Island (-68.2°N, -66.98333°W) is a small rocky island 0.6 nautical miles (1.1 km) southeast of Stonington Island in Neny Bay, off the west coast of Graham Land. Several islands were roughly charted in the area by the British Graham Land Expedition (BGLE), 1934-37, and by the United States Antarctic Service (USAS), 1939-41. They were surveyed in 1947 by the Falkland Islands Dependencies Survey (FIDS) and named for the M.V. Trepassey, ship used by the FIDS in establishing a base on Stonington Island in 1946. == See also == * List of antarctic and sub-antarctic islands

Trepidation Glacier
Trepidation Glacier (-78.76667°N, 162.35°W) is a small glacier entering the east side of Skelton Glacier between Moraine Bluff and Red Dike Bluff: The name was applied by the New Zealand party of the Commonwealth Trans-Antarctic Expedition (1956-58) and refers to a 1957 attempt by an aircraft to land on the exceedingly broken ice at the foot of the glacier.

Tressler Bank
Tressler Bank (-65°N, 95°W) is a submarine bank with a least depth of 56 fathoms, extending from about 94 to 96E in the eastern part of the Davis Sea. The bank was sounded by the USS Burton Island and USS Willis L. Tressler of the U.S. Navy Hydrographic Office who carried on oceanographic studies in the Antarctic aboard the USS Tressler was scientific leader at Wilkes Station in 1958.

Trethewry Point
Trethewry Point (-67.38333°N, 59.78333°W) is a rocky promontory 120 m high, projecting from the coast 4 nautical miles (7 km) east of William Scoresby Bay. Discovered and named in February 1936 by DI personnel on the William Scoresby.

Treves Butte
Treves Butte (-84.71667°N, -114.33333°W) is a prominent, partly ice-covered butte (2,100 m) immediately northwest of Discovery Ridge in the Ohio Range. Named by Advisory Committee on Antarctic Names (US-ACAN) for Samuel B. Treves, geologist, who worked several seasons in Antarctica and who in the 1960-61 and 1961-62 seasons made investigations in the Ohio Range and other parts of the Horlick Mountains.

Trevillian Island
Trevillian Island (-67.63333°N, 62.7°W) is a small, oval, humped island 1 nautical mile (1.9 km) south of Nost Island in Holme Bay, Mac. Robertson Land. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Rundoy (round island). Renamed by Antarctic Names Committee of Australia (ANCA) for T. Trevillian, draftsman with the Division of National Mapping, Dept. of National Development, Canberra, who for a number of years was responsible for the compilation of maps for ANARE (Australian National Antarctic Research Expeditions). == See also == * List of antarctic and sub-antarctic islands

Trey Peaks
Trey Peaks (-80.6°N, -28.86667°W) is a three conspicuous rock peaks, the highest 1,180 meters. They stand west of Blaiklock Glacier and 2 nautical miles (3.7 km) north of Mount Homard in the west part of Shackleton Range. First mapped in 1957 by the Commonwealth Trans-Antarctic Expedition and given this descriptive name, trey being a term for three used in dice or cards.

Triad Islands
Triad Islands (-65.6°N, -64.46667°W) is a group of three small islands lying 1.5 nautical miles (2.8 km) east of Chavez Island, off the west coast of Graham Land. First charted by the British Graham Land Expedition (BGLE) under Rymill, 1934-37. The name given by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 is descriptive. == See also == * List of antarctic and sub-antarctic islands

Triangle Point
Triangle Point (-62.53333°N, -59.85°W) is a triangular headland lying 1.5 nautical miles (2.8 km) northwest of Spit Point on the southwest side of Greenwich Island, in the South Shetland Islands. Charted by DI personnel on the Discovery II in 1935 and given this descriptive name.

Triassic Nunatak
Triassic Nunatak (-74.35°N, -73.11667°W) is a small nunatak 1.5 nautical miles (2.8 km) southwest of Jurassic Nunatak in the west extremity of Yee Nunataks, Ellsworth Land. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1987 after the Triassic Period in geological time and in association with Jurassic Nunatak. The name does not imply the age of the rock constituting this feature.

Tribby Peak
Tribby Peak (-71.93333°N, -97.8°W) is a peak 1.5 nautical miles (2.8 km) west of Mount Bubier on Edwards Peninsula, Thurston Island. Named by Advisory Committee on Antarctic Names (US-ACAN) after Osborne M. Tribby, Pharmacist's Mate in the Eastern Group of U.S. Navy Operation Highjump; aircrewman on the PBM Mariner flight to Noville Peninsula, January 11-12, 1947, in which survivors of the December 30 PBM crash were rescued and returned to the seaplane tender Pine Island.

Trice Islands
Trice Islands (-72.41667°N, -99.43333°W) is a group of small ice-covered islands lying just west of Evans Point, Thurston Island, in Peacock Sound. The group rises above the general level of Abbot Ice Shelf which occupies the sound. First mapped from air photos taken by U.S. Navy Operation Highjump, 1946-47. Named by Advisory Committee on Antarctic Names (US-ACAN) for Jack L. Trice, meteorologist at Byrd Station, 1964-65. == See also == * List of antarctic and sub-antarctic islands

Trickster Rocks
Trickster Rocks (-65.6°N, -64.6°W) is a several small rocks emerging from the sea less than 1 nautical mile (1.9 km) northwest of Chavez Island in Grandidier Channel, off the west coast of Graham Land. So named by United Kingdom Antarctic Place-Names Committee (UK-APC) because the rocks escaped notice of the 1957 Falkland Islands Dependencies Survey (FIDS) survey party, as they were thought to be icebergs. The feature was photographed by Hunting Aerosurveys Ltd., 1957-58.

Tricorn Mountain
Tricorn Mountain (-85.05°N, 173.45°W) is a mountain, 3,475 m, standing 4 nautical miles (7 km) east of Graphite Peak, about midway between the heads of Falkenhof and Leigh Hunt Glaciers. Named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1961-62) because of its resemblance to an admiral's tricorn hat.

Tricorn Peak
Tricorn Peak (-82.98333°N, 156.8°W) is a snow-covered peak, 2,320 m, on the ridge between Astro Glacier and Skua Glacier in the north part of the Miller Range. Seen by the northern party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1961-62) and so named because of its resemblance to a three-cornered hat.

Mount Tricorn
Mount Tricorn (-73.96667°N, -61.75°W) is a distinctive massif whose vertical rock faces rise to 1,120 m and surround a snow-covered interior which is lower except for a 1,610 m peak in the northwest portion, standing at the head of Wright Inlet on the east coast of Palmer Land. Discovered by members of the United States Antarctic Service (USAS) in a flight from East Base on December 30, 1940, and named for its resemblance to a gigantic tri-cornered hat.

Mount Tricouni
Mount Tricouni (-78.5°N, 161.95°W) is a prominent peak, 1,630 m, rising steeply 2 nautical miles (3.7 km) north of Hobnail Peak on the east side of Skelton Glacier, in Victoria Land. Surveyed and named in 1957 by the New Zealand party of the Commonwealth Trans-Antarctic Expedition, 1956-58. So named because it resembles a tricouni, a saw-toothed nail used on soles of alpine boots.

Mount Trident
Mount Trident (-72.43333°N, 169.23333°W) is a prominent peak (2,480 m) with three closely-spaced summits, rising above Trigon Bluff on the north side of Tucker Glacier in Victoria Land. So named by New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1957-58, because of the three summits.

The Trident
The Trident (-54.16667°N, -37.08333°W) is a ridge surmounted by three peaks, the highest 1,335 m, standing at the east side of Briggs Glacier in South Georgia. The name is descriptive of the three peaks and was given by the United Kingdom Antarctic Place-Names Committee (UK-APC) following survey by the SGS in the period 1951-57.

Trifid Peak
Trifid Peak (-67.85°N, -67.15°W) is a peak at the head of Shoesmith Glacier in western Horseshoe Island. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) in 1958. The name is descriptive of this three-sided matterhorn-type peak.

Trigon Bluff
Trigon Bluff (-72.48333°N, 169.15°W) is a steep, triangular bluff 10 nautical miles (18 km) west of Football Mountain, rising to 1,245 m on the north side of Tucker Glacier. Named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1957-58, which placed a triangulation station on its summit. The name is descriptive.

Trigonia Island
Trigonia Island (-66.01667°N, -65.68333°W) is a small island immediately off the south tip of Beer Island, lying 8 nautical miles (15 km) west of Prospect Point, off the west coast of Graham Land. Charted and named by the British Graham Land Expedition (BGLE), 1934-37, under Rymill. == See also == * List of antarctic and sub-antarctic islands

Trigwell Island
Trigwell Island (-68.55°N, 77.95°W) is an island in Prydz Bay, lying immediately west of Flutter Island and 1 nautical mile (1.9 km) west of Breidnes Peninsula, Vestfold Hills. First mapped from air photos taken by the Lars Christensen Expedition, 1936-37. Remapped by ANARE (Australian National Antarctic Research Expeditions) (1957-58) and named for E.A. Trigwell, radio supervisor at Davis Station in 1958. == See also == * List of antarctic and sub-antarctic islands

Trilling Bay
Trilling Bay (-69.51667°N, 39.68333°W) is a small bay just south of Skarvsnes Foreland along the east side of Lutzow-Holm Bay. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Trillingbukta (the triplet bay) in association with nearby Trilling Islands.

Trilling Islands
Trilling Islands (-69.5°N, 39.63333°W) is a three islands at the south side of Skarvsnes Foreland, lying in Trilling Bay in the east part of Lutzow-Holm Bay. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Trillingoyane (the triplet islands). == See also == * List of antarctic and sub-antarctic islands

Trilling Peaks
Trilling Peaks (-67.96667°N, 62.75°W) is a group of linear nunataks comprised of three main peaks standing 3 nautical miles (6 km) south of South Masson Range in the Framnes Mountains, Mac. Robertson Land. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Trillingnutane (the triplet peaks).

Trillingane Nunataks
Trillingane Nunataks (-71.83333°N, 27.41667°W) is a three nunataks standing 6 nautical miles (11 km) northeast of Balchen Mountain at the east end of the Sor Rondane Mountains. Mapped by Norwegian cartographers in 1957 from air photos taken by U.S. Navy Operation Highjump, 1946-47, and named Trillingane (the triplets).

Mount Trimpi
Mount Trimpi (-75.35°N, -72.8°W) is a mountain 3 nautical miles (6 km) west-northwest of Mount Brice in the Behrendt Mountains, Ellsworth Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1961-67. Named by Advisory Committee on Antarctic Names (US-ACAN) for Michael L. Trimpi, radioscience researcher at Eights Station in 1963.

Trinity Island
Trinity Island (-54°N, -38.16667°W) is an island having three peaks, lying 0.7 nautical miles (1.3 km) northeast of Main Island in the Willis Islands at South Georgia. Charted and so named for its three peaks by DI personnel in the period 1926-30. == See also == * List of antarctic and sub-antarctic islands

Trinity Island
Trinity Island (-63.75°N, -60.73333°W) is an island 15 nautical miles (28 km) long and 6 nautical miles (11 km) wide in the north part of Palmer Archipelago. Named by Nordenskjold, leader of the Swedish Antarctic Expedition, 1901-04, in commemoration of Bransfield's "Trinity Land" of 1820. == See also == * List of antarctic and sub-antarctic islands

Trinity Nunatak
Trinity Nunatak (-76.43333°N, 160.63333°W) is a large nunatak in the stream of the Mawson Glacier, about 5 nautical miles (9 km) north of the Convoy Range in Victoria Land. Mapped in 1957 by the New Zealand Northern Survey party of the Commonwealth Trans-Antarctic Expedition (1956-58), which applied the name because of its three summits.

Trinity Peninsula
Trinity Peninsula (-63.61667°N, -58.33333°W) is the extreme northeast portion of the Antarctic Peninsula, extending northeastward for about 80 nautical miles (150 km) from a line connecting Cape Kater and Cape Longing. Dating back more than a century, chartmakers used various names (Trinity, Palmer, Louis Philippe) for this portion of the Antarctic peninsula, each name having some historical merit. The recommended name derives from "Trinity Land" given by Edward Bransfield in January 1820, although the precise application by him has not been identified with certainty and is a matter of different interpretation by Antarctic historians. Named after the Trinity Board.

Trio Nunataks
Trio Nunataks (-75.5°N, 159.7°W) is a three large nunataks standing at the south side of David Glacier, just west of the terminus of Hollingsworth Glacier, in Victoria Land. Named by the Southern Party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1962-63.

Trioen Nunataks
Trioen Nunataks (-72.41667°N, -3.98333°W) is an isolated group of three nunataks about 8 nautical miles (15 km) northwest of Borg Mountain in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and named Trioen (the trio).

Triple Islands
Triple Islands (-66.76667°N, 141.2°W) is a three small rocky islands in a closely-spaced chain, lying close east of the tip of Zelee Glacier Tongue, 0.4 nautical miles (0.7 km) south-southeast of Double Islands. Photographed from the air by U.S. Navy Operation Highjump, 1946-47. Charted and named by the French Antarctic Expedition under Liotard, 1949-51. == See also == * List of antarctic and sub-antarctic islands

The Triplets
The Triplets (-62.4°N, -59.68333°W) is a three-pointed peak at the southeast side of Coppermine Cove, near the west end of Robert Island in the South Shetland Islands. The name appears to have been applied by DI personnel on the Discovery II, who charted the peak in 1935.

Tripod Island
Tripod Island (-64.31667°N, -62.95°W) is a small island which lies close south of the west extremity of Eta Island and marks the north side of the western entrance to Andersen Harbor in the Melchior Islands, Palmer Archipelago. The name was probably given by DI personnel who roughly surveyed the island in 1927. The island was resurveyed by Argentine expeditions in 1942, 1943 and 1948. == See also == * List of antarctic and sub-antarctic islands

Tripp Bay
Tripp Bay (-76.61667°N, 162.73333°W) is a bay along the coast of Victoria Land formed by a recession in the ice between the Oates Piedmont Glacier and Evans Piedmont Glacier. The bay was first charted by the British Antarctic Expedition, 1907-09. The name appears to have been first used by the British Antarctic Expedition (1910-13) and derives from Tripp Island which lies within the bay.

Tripp Ice Tongue
Tripp Ice Tongue (-76.56667°N, 162.75°W) is an ice tongue that occupies the north half of Tripp Bay on the coast of Victoria Land. The feature is nurtured by several glaciers (Fry Glacier, Hedblom Glacier, as well as ice from Oates Piedmont Glacier). It could be misleading to name this tongue in association with one of these partial sources. It is therefore named for its geographic location in Tripp Bay.

Tripp Island
Tripp Island (-76.63333°N, 162.7°W) is an island in the south part of Tripp Bay along the coast of Victoria Land. Discovered by the British Antarctic Expedition (1907-09) which named this feature for Leonard O.H. Tripp of Wellington, New Zealand, a friend and supporter of Shackleton. == See also == * List of antarctic and sub-antarctic islands

Mount Tripp
Mount Tripp (-83.28333°N, 166.88333°W) is a massive, cone-shaped, ice-covered mountain, 2,980 m, standing between Hoffman and Hewitt Glaciers, 7 nautical miles (13 km) west-northwest of Rhodes Peak in the Holland Range. Discovered by the British Antarctic Expedition (1907-09) and named for Leonard O.H. Tripp, of New Zealand, who gave assistance to this expedition and also to Shackleton's expedition of 1914-17.

Tristan Island
Tristan Island (-66.73333°N, 140.9°W) is a small rocky island 0.7 nautical miles (1.3 km) west of Yseult Island and 0.2 nautical miles (0.4 km) north of the west point on Cape Jules. Photographed from the air by U.S. Navy Operation Highjump, 1946-47. Charted by the French Antarctic Expedition under Barre, 1951-52, and so named because of its twin relationship with Yseult Island. Tristan is the popular spelling of Tristram, legendary hero incorporated into Arthurian legend and later popularized by Wagner's opera Tristan und Isolde. == See also == * List of antarctic and sub-antarctic islands

Triton Point
Triton Point (-71.7°N, -68.2°W) is a rocky point forming the east end of the high ridge separating Venus and Neptune Glaciers on the east coast of Alexander Island. The coast in this vicinity was first seen from the air by Lincoln Ellsworth on November 23, 1935, and roughly mapped from photos obtained on that flight by W.L.G. Joerg. The point was roughly surveyed in 1936 by the British Graham Land Expedition (BGLE) and more accurately defined in 1949 by the Falkland Islands Dependencies Survey (FIDS). Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for its association with Neptune Glacier, Triton being a satellite of Neptune.

Mount Tritoppen
Mount Tritoppen (-67.98333°N, 62.48333°W) is a triple-peaked mountain, 1,350 m, standing 3 nautical miles (6 km) south of Mount Hordern in the David Range of the Framnes Mountains. Mapped by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition, 1936-37, and named Tritoppen (the three-peaked mountain).

Triune Peaks
Triune Peaks (-69.13333°N, -66.86667°W) is a three prominent, sharply-pointed rock peaks, rising 12 nautical miles (22 km) northeast of Mount Balfour and overlooking Wordie Ice Shelf on the west coast of Antarctic Peninsula. First roughly surveyed from the ground by British Graham Land Expedition (BGLE), 1936-37. Photographed from the air by Ronne Antarctic Research Expedition (RARE), December 1947. Resurveyed from the ground by Falkland Islands Dependencies Survey (FIDS), November 1958. The United Kingdom Antarctic Place-Names Committee (UK-APC) name derives from the number of peaks in the group.

Trivelpiece Island
Trivelpiece Island (-64.73333°N, -64.15°W) is an island in Wylie Bay, located northeast of Halfway Island. Named for Wayne Z. and Susan Green Trivelpiece, who studied seabird ecology in the Antarctic Peninsula area for over twenty years. == See also == * List of antarctic and sub-antarctic islands

Trivial Islands
Trivial Islands (-65.51667°N, -65.21667°W) is a group of small islands lying 1.5 nautical miles (2.8 km) east of Lacuna Island and 7 nautical miles (13 km) north of Vieugue Island, in the Biscoe Islands. Mapped by the Falkland Islands Dependencies Survey (FIDS) from photos taken by Hunting Aerosurveys Ltd. in 1956-57. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) because these islands are small, dull and uninteresting. == See also == * List of antarctic and sub-antarctic islands

Trojan Range
Trojan Range (-64.53333°N, -63.38333°W) is a mountain range rising to 2,135 m, extending northward from Mount Francais along the east side of Iliad Glacier, Anvers Island, in the Palmer Archipelago. Surveyed by the Falkland Islands Dependencies Survey (FIDS) in 1955 and named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the Trojans, one of the opposing sides in the Trojan War in Homer's Iliad.

Trollhul
Trollhul (-54.81667°N, -36.2°W) is a small cove 4 nautical miles (7 km) northwest of Cape Disappointment at the mouth of Graae Glacier, along the south coast of South Georgia. Surveyed by the SGS in the period 1951-57. The name is well established in local use.

Trollkjelen Crevasse Field
Trollkjelen Crevasse Field (-71.28333°N, -0.83333°W) is a crevasse field about 12 nautical miles (22 km) long in the Fimbul Ice Shelf, lying immediately off the northeast side of Trollkjelneset Headland in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and air photos by the Norwegian expedition (1958-59) and named Trollkjelen (the troll's cauldron).

Trollkjelneset Headland
Trollkjelneset Headland (-71.41667°N, -1°W) is a snow-domed headland rising between Krylvika Bight and the mouth of Jutulstraumen Glacier in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and air photos by the Norwegian expedition (1958-59) and named Trollkjelneset (cape of the troll's cauldron).

Trollkjelpiggen Peak
Trollkjelpiggen Peak (-71.58333°N, -1.15°W) is a peak 5 nautical miles (9 km) southwest of Utkikken Hill, on the east side of Ahlmann Ridge in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and air photos by the Norwegian expedition (1958-59) and named Trollkjelpiggen (peak of the troll's cauldron).

Trollslottet Mountain
Trollslottet Mountain (-71.93333°N, 7.23333°W) is a high ridgelike mountain with several prominent peaks, forming the northwest limit of the Filchner Mountains in Queen Maud Land. Plotted from surveys and air photos by Norwegian Antarctic Expedition (1956-60) and named Trollslottet (the troll castle).

Trooz Glacier
Trooz Glacier (-65.33333°N, -63.96667°W) is a glacier 1.5 nautical miles (2.8 km) wide at its mouth and some 15 nautical miles (28 km) long, flowing west into the north part of Collins Bay on the west coast of Graham Land. Discovered by the French Antarctic Expedition, 1908-10. Named for J. de Trooz, Belgian Minister of the Interior and Public Instruction, who was instrumental in procuring funds for the publication of the scientific results of the Belgian Antarctic Expedition, 1897-99. This application was suggested by the Advisory Committee on Antarctic Names (US-ACAN) because of duplication of the name Trooz for what is now known as Cape Perez.

Trost Peak
Trost Peak (-67.86667°N, 62.8°W) is a peak, 980 m, standing 1.5 nautical miles (2.8 km) northeast of Mount Burnett in the Masson Range of the Framnes Mountains. Mapped by Norwegian cartographers from aerial photos taken by the Lars Christensen Expedition, 1936-37. Remapped by ANARE (Australian National Antarctic Research Expeditions), 1957-60, and named for P.A. Trost, physicist at Mawson Station, 1958.

Trost Rocks
Trost Rocks (-69.75°N, 68.96667°W) is a two rock outcrops at the northeast end of Single Island on the west side of the Amery Ice Shelf. The rocks were photographed from ANARE (Australian National Antarctic Research Expeditions) aircraft in 1956 and their position fixed by a field party in December 1962. Named by Antarctic Names Committee of Australia (ANCA) for P.A. Trost, electronics engineer at Mawson Station in 1962, a member of the field party which visited the rocks.

Mount Trott
Mount Trott (-70.7°N, 66.38333°W) is a ridgelike mountain with a jagged, saw-tooth appearance, about 1 nautical mile (1.9 km) north of Mount Bunt in the Prince Charles Mountains. Plotted from ANARE (Australian National Antarctic Research Expeditions) air photos taken in 1956 and 1960. Named by Antarctic Names Committee of Australia (ANCA) for N.E. Trott, weather observer at Wilkes Station in 1962, and officer in charge at Davis Station in 1964.

Mount Troubridge
Mount Troubridge (-71.13333°N, 167.73333°W) is a mountain over 1,000 m, surmounting the east end of Hedgpeth Heights in the Anare Mountains. Discovered and rudely charted in January 1841 by Captain James Ross, Royal Navy, who named it for R. Admiral Sir Edward Thomas Troubridge, one of the junior lords of the Admiralty at that time.

Trough Lake
Trough Lake (-78.03333°N, 163.46667°W) is a named in association with Pyramid Trough.

Trousers Rock
Trousers Rock (-57.06667°N, -26.75°W) is a rock with a prominent wave-cut arch, lying immediately west of Cook Rock and 0.3 nautical miles (0.6 km) northeast of Vindication Island in the South Sandwich Islands. Charted in 1930 and given this descriptive name by DI personnel on the Discovery II.

Trout Island
Trout Island (-66.01667°N, -65.45°W) is an island just east of Salmon Island in the Fish Islands, off the west coast of Graham Land. Charted by the British Graham Land Expedition (BGLE) under Rymill, 1934-37. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 because it is one of the Fish Islands. == See also == * List of antarctic and sub-antarctic islands

Trowbridge Island
Trowbridge Island (-62°N, -57.65°W) is an island lying 2 nautical miles (3.7 km) northwest of Cape Melville in Destruction Bay, off the east coast of King George Island in the South Shetland Islands. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for the sealer Lady Trowbridge (Captain Richard Sherratt) from Liverpool, which was wrecked off Cape Melville on December 25, 1820. == See also == * List of antarctic and sub-antarctic islands

Trubyatchinskiy Nunatak
Trubyatchinskiy Nunatak (-68.33333°N, 49.63333°W) is a nunatak lying 7 nautical miles (13 km) south of Alderdice Peak in the Nye Mountains, Enderby Land. Named by the Soviet Antarctic Expedition, 1961-62, for Soviet magnetician N.N. Trubyatchinskiy (1886-1942).

Trudge Valley
Trudge Valley (-76.71667°N, 159.75°W) is a valley on the southern side of Windwhistle Peak in the Allan Hills, Victoria Land. Reconnoitered by the New Zealand Antarctic Research Program (NZARP) Allan Hills Expedition (1964) who named it after the many journeys along its length.

True Glacier
True Glacier (-74.63333°N, -111.75°W) is a glacier on the west side of Bear Peninsula, flowing southwest into Dotson Ice Shelf south of Hunt Bluff, on the Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from U.S. Navy aerial photographs taken in 1966. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1977 after Lawrence E. True, U.S. Navy radioman who to that time had served in three deployments of OpDFrz.

True Hills
True Hills (-80.2°N, -26.85°W) is a rock hills 1 nautical mile (1.9 km) southeast of Wiggans Hills, rising to 850 m and marking the northeast end of La Grange Nunataks, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by British Antarctic Survey (BAS), 1968-71. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) after Anthony True, BAS surveyor, Halley Station, 1968-70, who worked in Shackleton Range.

Trueman Terraces
Trueman Terraces (-80.71667°N, -22.68333°W) is an ice-free terraces rising to 1,520 m on the east side of Goldschmidt Cirque, near the east end of Read Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by British Antarctic Survey (BAS), 1968-71. In association with the names of geologists grouped in this area, named by the United Kingdom Antarctic Place-Names Committee (UK-APC) after Sir Arthur E. Trueman (1895-1956), British geologist, who worked on the coal measures and their correlation by marine bands, and on the introduction of statistical methods into paleontology; Professor of Geology, Glasgow University, 1937-46; President, Geological Society of London, 1945-47.

Trulla Bluff
Trulla Bluff (-59.03333°N, -26.51667°W) is a high, ice-covered bluff forming the eastern extremity of Bristol Island, South Sandwich Islands. This feature was named "Glacier Bluff" during the survey of the island from RRS avoid duplication. The new name refers to the Norwegian whaling vessel Trulla which visited the islands in 1911.

Truman Nunatak
Truman Nunatak (-72.73333°N, 75.01667°W) is a small, partly snow-covered nunatak 7.5 nautical miles (14 km) north of Mount Harding in the Grove Mountains. Mapped by ANARE (Australian National Antarctic Research Expeditions) from air photos, 1956-60. Named by Antarctic Names Committee of Australia (ANCA) for M.J. Truman, electrical fitter at Mawson Station, 1962.

Trump Islands
Trump Islands (-66.03333°N, -65.93333°W) is a small group of islands lying 4 nautical miles (7 km) southwest of Dodman Island, off the west coast of Graham Land. Discovered and named by the British Graham Land Expedition (BGLE), 1934-37, under Rymill. == See also == * List of antarctic and sub-antarctic islands

Trundle Island
Trundle Island (-65.38333°N, -65.3°W) is an island lying 1 nautical mile (1.9 km) northeast of Jingle Island, Pitt Islands, in the Biscoe Islands. Photographed by Hunting Aerosurveys Ltd. in 1956 and mapped from these photos by the Falkland Islands Dependencies Survey (FIDS). Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 after Mr Trundle, a character in Charles Dickens' Pickwick Papers. == See also == * List of antarctic and sub-antarctic islands

Trundy Island
Trundy Island (-64.78333°N, -64.46667°W) is an island 0.4 nautical miles (0.7 km) west-northwest of Robbins Island in the west part of Joubin Islands. Named by Advisory Committee on Antarctic Names (US-ACAN) for George B. Trundy, Able Seaman in the R.V. Hero in her first voyage to Antarctica and nearby Palmer Station in 1968. == See also == * List of antarctic and sub-antarctic islands

Tryggve Point
Tryggve Point (-77.65°N, 166.7°W) is a point 1 nautical mile (1.9 km) northwest of Turks Head on the west side of Ross Island. First charted by the British Antarctic Expedition, 1910-13, under Scott, who named it for Tryggve Gran, Norwegian ski expert with the expedition.

Tryne Bay
Tryne Bay (-68.4°N, 78.46667°W) is a bay about 3 nautical miles (6 km) wide at the northeast end of the Vestfold Hills, lying between the Tryne Islands and the coast. Charted by Norwegian cartographers from air photos taken by the Lars Christensen Expedition (1936-37) and named "Trynevika" (the snout bay).

Tryne Crossing
Tryne Crossing (-68.5°N, 78.3°W) is a low but rough pass across Langnes Peninsula, Vestfold Hills, leading from the southwest arm of Tryne Fjord to Langnes Fjord. Used for portage and sledges and probably suitable for tracked vehicles. The area was mapped from air photos taken by the Lars Christensen Expedition (1936-37), and was photographed by U.S. Navy Operation Highjump (1946-47). First traversed by an ANARE (Australian National Antarctic Research Expeditions) party led by B.H. Stinear, May 13, 1957, and named for its association with Tryne Fjord.

Tryne Fjord
Tryne Fjord (-68.46667°N, 78.36667°W) is an irregular-shaped fjord that idents the northern side of Langnes Peninsula in the Vestfold Hills. Mapped and named Tryne Fjord (snout fjord) by the Lars Christensen Expedition, 1936-37.

Tryne Islands
Tryne Islands (-68.4°N, 78.38333°W) is a group of numerous small islands and rocks, about 4 nautical miles (7 km) in extent, forming the western limit of Tryne Bay and Tryne Sound at the northeast end of the Vestfold Hills. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition (1936-37) and named Trynoyane (the snout islands). == See also == * List of antarctic and sub-antarctic islands

Tryne Point
Tryne Point (-67.3°N, 59.05°W) is a rocky point at the east extremity of Law Promontory, forming the west side of the entrance of Stefansson Bay. Charted by Norwegian cartographers from aerial photographs taken by the Norwegian expedition under Christensen in January-February 1937, and named Trynet, a Norwegian word meaning "the snout." The form Tryne, dropping the definite article, is approved with the added generic term point.

Tryne Sound
Tryne Sound (-68.41667°N, 78.41667°W) is a short, narrow passage on the north side of Langnes Peninsula, Vestfold Hills, connecting Tryne Bay and Tryne Fjord. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition (1936-37) and named Tryne Sund (snout sound).

Tschuffert Peak
Tschuffert Peak (-67.46667°N, 60.9°W) is a prominent, isolated peak between Taylor Glacier and Chapman Ridge in Mac. Robertson Land. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Svartpiggen (the black peak). Renamed by Antarctic Names Committee of Australia (ANCA) for H. Tschuffert, meteorologist at Mawson Station in 1958.

Tsentral'naya Hill
Tsentral'naya Hill (-70.75°N, 11.66667°W) is a bare rock hill (205 m) in the central part of the Schirmacher Hills, Queen Maud Land. The feature was mapped by the Soviet Antarctic Expedition in 1961 and named Gora Tsentral'naya (central hill).

Tsiolkovskiy Island
Tsiolkovskiy Island (-70.5°N, 3°W) is an ice-covered island in the Fimbul Ice Shelf, Queen Maud Land. The summit of the island rises about 200 m above the general level of the ice shelf. Kroshka Island lies close southwest and is similar but smaller. First mapped by the Soviet Antarctic Expedition in 1961 and named for K.E. Tsiolkovskiy (1857-1935), Russian scientist and inventor. == See also == * List of antarctic and sub-antarctic islands

Tu Rocks
Tu Rocks (-62.23333°N, -58.88333°W) is a two low rocks lying in Maxwell Bay 2 nautical miles (3.7 km) east of the southwest end of King George Island, in the South Shetland Islands. The name appears to have been given by DI personnel on the Discovery II who charted the rocks in 1935. Tu is apparently phonetic for two.

Tua Hill
Tua Hill (-72.08333°N, 1.2°W) is an isolated rock hill 3 nautical miles (6 km) west of Brattskarvet Mountain in the Sverdrup Mountains, Queen Maud Land. Photographed from the air by the German Antarctic Expedition (1938-39). Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and air photos by the Norwegian expedition (1958-59) and named Tua (the knoll).

Mount Tuatara
Mount Tuatara (-80.56667°N, 158.33333°W) is a mountain, 1,640 m, standing on the south side of Byrd Glacier, 7 nautical miles (13 km) north of Mount Hamilton. Mapped by the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1960-61) who so named it because the long spiny summit ridge resembles a lizard.

Tuati Peak
Tuati Peak (-77.95°N, 162.81667°W) is a peak, 2,595 m, which rises above the north wall of Mitchell Glacier at the glacier head, in Royal Society Range, Victoria Land. Named in 1993 by New Zealand Geographic Board (NZGB) after Tuati, the Maori name of a sailor known as John Stewart, the first New Zealander to view the icy coast of Antarctica. He sailed on the ship Vincennes, the flagship of the U.S. Exploring Expedition, 1838-42, led by Lieutenant Charles Wilkes, USN.

Mount Tuck
Mount Tuck (-78.48333°N, -84.83333°W) is a pyramidal mountain (3,560 m) at the head of Hansen Glacier in the Sentinel Range, Ellsworth Mountains. First mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1957-59. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant John Tuck, Jr., U.S. Navy, Navy support leader at the South Pole Station in 1957.

Tucker Glacier
Tucker Glacier (-72.53333°N, 169.25°W) is a major valley glacier of Victoria Land, about 90 nautical miles (170 km) long, flowing southeast between Admiralty Mountains and Victory Mountains to the Ross Sea. There is a snow saddle at the glacier's head, just west of Homerun Range, from which Ebbe Glacier flows northwestward. Explored by New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1957-58, and named by them after Tucker Inlet, the ice-filled coastal indentation at the mouth of this glacier named by Ross in 1841.

Tucker Inlet
Tucker Inlet (-72.61667°N, 169.75°W) is an ice-filled inlet identing the coast of Victoria Land between Capes Wheatstone and Daniell. Discovered in February 1841 by Sir James Clark Ross who named this feature for Charles T. Tucker, master of the Erebus.

Tucker Point
Tucker Point (-73.95°N, -114.81667°W) is an ice-covered point on the west side of Murray Foreland, Martin Peninsula, 12 nautical miles (22 km) southwest of Cape Herlacher, on the Bakutis Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photographs, 1959-67. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1977 after Robert L. Tucker, U.S. Navy meteorologist on nine deployments of Operation Deepfreeze through 1976.

Mount Tucker
Mount Tucker (-64.33333°N, -59.26667°W) is a distinctive rock mountain mass 9 nautical miles (17 km) northwest of Longing Gap, overlooking Larsen Inlet in Graham Land. Mapped from surveys by Falkland Islands Dependencies Survey (FIDS) (1960-61). Named by United Kingdom Antarctic Place-Names Committee (UK-APC) after the Tucker Sno-cat Corporation of Medford, Oregon, makers of Sno-cat vehicles.

Tuff Bluff
Tuff Bluff (-78.06667°N, 165.45°W) is a small though prominent light-colored bluff on the northern slopes of Brown Peninsula, Victoria Land. The bluff is significant geologically as a locality for trachytic tuff, from which the feature derives its name. Name applied by the New Zealand Antarctic Place-Names Committee (NZ-APC) following investigations by the New Zealand Geological Survey and Victoria University Expedition in the area, 1964-65.

Tufft Nunatak
Tufft Nunatak (-63.91667°N, -58.7°W) is a small nunatak 3 nautical miles (6 km) southwest of Mount Bradley, Trinity Peninsula. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) for Ronald W. Tufft of Falkland Islands Dependencies Survey (FIDS), a member of the reconnaissance party for the Detroit Plateau journey in February 1957.

Tufts Pass
Tufts Pass (-69.41667°N, -70.58333°W) is a pass extending in an east-west direction between Rouen Mountains and Elgar Uplands in the north part of Alexander Island. First seen from the air and roughly mapped by the British Graham Land Expedition (BGLE) in 1937. Remapped from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947-48, by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960. Named by the RARE for Tufts University, Medford, MA, where Dr. Robert Nichols was head of the geology department before joining the RARE.

Tukey Island
Tukey Island (-64.76667°N, -64.43333°W) is an island near the center of the Joubin Islands. Named by Advisory Committee on Antarctic Names (US-ACAN) for Claude C. Tukey, Messman in R.V. Hero on her first voyage to Antarctica and nearby Palmer Station in 1968. == See also == * List of antarctic and sub-antarctic islands

Tukhchiev Knoll
Tukhchiev Knoll (-62.63333°N, -60.15°W) is a solitary ice-covered knoll rising to approx. 650 m in Eastern Livingston Island. Located some 1,300 m east of the midpoint of Worner Gap, 3,600 m east-northeast of the summit of Pliska Ridge, 4,030 m north-northeast of the summit of Mount Friesland and 2,900 m southeast of the highest point of Mount Bowles. A conspicuous landmark in Worner Gap area, overlooking Huron Glacier and upper Perununka Glacier. Named for Kuzman Tukhchiev, participant in the 1993-94 Bulgarian Antarctic campaign and base commander at St. Kliment Ohridski during the 1994-95 and 1995-96 seasons.

Mount Tukotok
Mount Tukotok (-72.28333°N, 164.71667°W) is a red granite peak, 2,540 m, standing 5 nautical miles (9 km) east-southeast of Mount Apolotok in Salamander Range, Freyberg Mountains. Named by the Northern Party of New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1963-64; the name is of Eskimo origin and means "the little red one."

Tula Mountains
Tula Mountains (-66.9°N, 51.1°W) is a group of extensive mountains lying immediately eastward of Amundsen Bay in Enderby Land. Discovered on January 14, 1930 by the British Australian New Zealand Antarctic Research Expedition (BANZARE) under Mawson and named Tula Range by him after John Biscoe's brig, the Tula, from which Biscoe discovered Enderby Land in 1831. The term "mountains" was recommended for the group following an ANARE (Australian National Antarctic Research Expeditions) sledge survey in 1958 by G.A. Knuckey.

Tula Point
Tula Point (-65.51667°N, -65.65°W) is a point forming the northeast extremity of Renaud Island in the Biscoe Islands. The Biscoe Islands were discovered in 1832 by a British expedition under John Biscoe and were first roughly surveyed by the French Antarctic Expedition, 1903-05 and 1908-10. Renaud Island was again roughly surveyed in 1935-36 by the British Graham Land Expedition (BGLE). The point was named in 1954 by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the Tula, one of the two vessels of Biscoe's 1830-32 expedition.

Tumble Glacier
Tumble Glacier (-69.95°N, -69.33333°W) is a glacier on the east side of Alexander Island, 7 nautical miles (13 km) long and 3 nautical miles (6 km) wide, which flows east from the cliffs of Mounts Egbert, Ethelwulf and Ethelred into the west side of George VI Sound immediately south of Mount King. First roughly surveyed in 1936 by the British Graham Land Expedition (BGLE) under Rymill. Resurveyed in 1948 by the Falkland Islands Dependencies Survey (FIDS), and so named by them because of the extremely broken condition of the lower reaches of the glacier.

Tumbledown Cliffs
Tumbledown Cliffs (-64.08333°N, -58.45°W) is a conspicuous rock cliffs on the west coast of James Ross Island, about 3 nautical miles (6 km) north of Cape Obelisk. Probably first seen by Dr. Otto Nordenskjold in 1903. Surveyed by Falkland Islands Dependencies Survey (FIDS) in 1945. The name given by United Kingdom Antarctic Place-Names Committee (UK-APC) is descriptive of the formation of the scree slope at the foot of these cliffs.

Tunet Valley
Tunet Valley (-72.03333°N, 4.03333°W) is a semi-circular ice-filled valley on the north side of Mount Hochlin, in the Muhlig-Hofmann Mountains of Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by the Norwegian Antarctic Expedition (1956-60) and named Tunet (the courtyard).

Tunga Spur
Tunga Spur (-73.9°N, -5.33333°W) is a prominent rock spur extending from the Kirwan Escarpment just southwest of Gommen Valley, in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and additional air photos (1958-59), and named Tunga (the tongue).

Tuning Nunatak
Tuning Nunatak (-84.73333°N, -115.96667°W) is a small rock nunatak 1 nautical mile (1.9 km) north of Darling Ridge, Ohio Range. Surveyed by the United States Antarctic Research Program (USARP) Horlick Mountains Traverse party in December 1958. Named by Advisory Committee on Antarctic Names (US-ACAN) for Preston O. Tuning, meteorologist at Byrd Station in 1960.

Tuorda Peak
Tuorda Peak (-65.98333°N, -65.16667°W) is a peak, 870 m, rising eastward of Ferin Head on the west coast of Graham Land. Photographed by Hunting Aerosurveys Ltd. in 1956-57, and mapped from these photos by the Falkland Islands Dependencies Survey (FIDS). Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 for Pava L. Tuorda, a Jokkmokk Lapp who, with Anders Rossa, accompanied A.E. Nordenskjold to Greenland in 1883 and first demonstrated the possibilities of skis for polar travel.

Tupinier Islands
Tupinier Islands (-63.36667°N, -58.26667°W) is a group of pyramid-shaped islands lying off the north coast of Trinity Peninsula, about 3 nautical miles (6 km) west of Cape Ducorps. Discovered by the French expedition under Captain Jules Dumont d'Urville, 1837-40, and named after the Baron Tupinier (1779-1850), an official of the French Navy Dept. who was instrumental in obtaining government support for the expedition. The islands were recharted by the Falkland Islands Dependencies Survey (FIDS), 1946. == See also == * List of antarctic and sub-antarctic islands

Tupman Island
Tupman Island (-65.48333°N, -65.53333°W) is an island 2 nautical miles (3.7 km) long lying east of Pickwick Island, Pitt Islands, in the Biscoe Islands. Shown on an Argentine government chart of 1957. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 after Tracy Tupman, a member of the Pickwick Club in Charles Dickens' Pickwick Papers. == See also == * List of antarctic and sub-antarctic islands

Tur Peak
Tur Peak (-73.1°N, 167.96667°W) is a distinctive peak (1,470 m) at the southeast periphery of Malta Plateau, situated along the north wall of lower Mariner Glacier 4.5 nautical miles (8 km) south-southeast of Mount Alberts, in Victoria Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-64. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Juan J. Tur, U.S. Navy Reserve, medical officer at Hallett Station, 1957.

Turbidite Hill
Turbidite Hill (-82.01667°N, 157.75°W) is a hill 4 nautical miles (7 km) east of Laird Plateau on the north side of Olson Neve. Mapped by the Holyoake, Cobham and Queen Elizabeth Ranges party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1964-65) and named after curious sedimentary features in the Beacon Sandstone making up a portion of the hill.

Turbulence Bluffs
Turbulence Bluffs (-67.15°N, 56.48333°W) is a three high bluffs with vertical faces on the northwest but merging with the ice sheet on the southeast, standing along the east side of Robert Glacier 16 nautical miles (30 km) northeast of Rayner Peak in Enderby Land. Mapped from ANARE (Australian National Antarctic Research Expeditions) surveys and air photos, 1954-66. So named by ANARE because of severe turbulence encountered while attempting a helicopter landing in 1965.

Mount Turcotte
Mount Turcotte (-81.25°N, -85.4°W) is a rock peak 2.5 nautical miles (4.6 km) northwest of Mount Tidd in the Pirrit Hills. The peak was positioned by the U.S. Ellsworth-Byrd Traverse Party on December 7, 1958, and named for F. Thomas Turcotte, seismologist with the party.

Turk Peak
Turk Peak (-81.03333°N, 158.38333°W) is a large hump-shaped peak, 2,000 m, being the central of three peaks on a ridge 6 nautical miles (11 km) north of Mount Zinkovich, in the Churchill Mountains. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Colonel Wilbert Turk, commander of the 61st Troop Carrier Squadron which initiated the flights of C-130 Hercules aircraft in Antarctica in January 1960.

Turks Head
Turks Head (-77.66667°N, 166.76667°W) is a precipitous black headland over 200 m high, 5 nautical miles (9 km) east-southeast of Cape Evans on the west side of Ross Island. Discovered by the Discovery expedition (1901-04) and so named because of its resemblance to a head swathed in a turban.

Turks Head Bay
Turks Head Bay (-77.66667°N, 166.73333°W) is a small bay between Tryggve Point and Turks Head on the west side of Ross Island. The bay name appears to be first used on a map of the British Antarctic Expedition (1910-13) and is in association with Turks Head.

Turks Head Ridge
Turks Head Ridge (-77.63333°N, 166.81667°W) is a mostly ice-covered ridge in the southwest part of Ross Island, extending from Turks Head for a few miles up the slopes of Mount Erebus. Mapped by the British Antarctic Expedition (1910-13) under Scott and so named because of its association with Turks Head.

Turmoil Point
Turmoil Point (-59.03333°N, -26.66667°W) is the western point of Bristol Island, South Sandwich Islands. This imposing point, rising to 400 m and culminating in a snow-covered summit, is a distinctive landmark when viewed from the west. Named by United Kingdom Antarctic Place-Names Committee (UK-APC). The name refers to the violent air streams commonly encountered during flying operations from HMS seas typical of the locality.

Turmoil Rock
Turmoil Rock (-62.35°N, -59.78333°W) is a rock lying 0.7 nautical miles (1.3 km) southeast of Table Island, South Shetland Islands. The descriptive name was given by United Kingdom Antarctic Place-Names Committee (UK-APC) in 1971 since the surface of the rock is about 0.5 m below the water level and almost always breaks the surface.

Turnabout Glacier
Turnabout Glacier (-77.76667°N, 160.71667°W) is a glacier to the south of Finger Mountain, occupying the east half of Turnabout Valley, the west part being ice free, in the Quartermain Mountains, Victoria Land. Named in 1992 by Advisory Committee on Antarctic Names (US-ACAN) in association with Turnabout Valley.

Turnabout Island
Turnabout Island (-66.1°N, -65.75°W) is a snow-capped island in the Saffery Islands, lying 2 nautical miles (3.7 km) southwest of Black Head, off the west coast of Graham Land. Discovered and named by the British Graham Land Expedition (BGLE), 1934-37, under Rymill. So named because it represents the turning point on a BGLE sledge journey in August 1935, when open water was encountered southwest of this island. == See also == * List of antarctic and sub-antarctic islands

Turnabout Ridge
Turnabout Ridge (-83.3°N, 162.58333°W) is a high, rugged ridge, 10 nautical miles (18 km) long, lying between Linehan and Lowery Glaciers in the Queen Elizabeth Range. So named by the Ohio State University party to the Queen Alexandra Range (1966-67) because the ridge was the farthest point from Base Camp reached by the party.

Turnabout Valley
Turnabout Valley (-77.76667°N, 160.53333°W) is a partially deglaciated valley between Finger Mountain and Pyramid Mountain, in the Quartermain Mountains, Victoria Land. Named by the Victoria University of Wellington Antarctic Expedition (VUWAE), 1958-59.

Turnbull Point
Turnbull Point (-63.03333°N, -56.6°W) is an exposed rocky point at the west extremity of D'Urville Island. Following surveys by Falkland Islands Dependencies Survey (FIDS), 1959-61, named after David H. Turnbull, Master of the FIDS/BAS ship Shackleton, 1959-69.

Mount Turnbull
Mount Turnbull (-70.35°N, 64.03333°W) is a partly snow-covered mountain, 1,980 m, standing 12 nautical miles (22 km) southwest of Mount Starlight in the northwest portion of the Prince Charles Mountains, Mac. Robertson Land. Mapped from ANARE (Australian National Antarctic Research Expeditions) surveys and air photos, 1955-65. Named by Antarctic Names Committee of Australia (ANCA) for W.L. Turnbull, radio supervisor at Mawson Station, 1965.

Turner Glacier
Turner Glacier (-67.61667°N, -68.48333°W) is a glacier on the east side of Mount Liotard flowing northeast into Ryder Bay, Adelaide Island. The glacier was surveyed by Falkland Islands Dependencies Survey (FIDS), 1948, and photographed from the air by Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE), 1956-57. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1977 after Andrew John Turner, British Antarctic Survey (BAS) builder, Halley Station, 1973-74; Signy Island, 1974-75; Rothera Station, 1976-77, 1978-80; and Faraday Station, 1982-83.

Turner Hills
Turner Hills (-82.96667°N, 156.3°W) is a group of hills between Astro Glacier and Nimrod Glacier in the northwest part of the Miller Range. Mapped by the United States Geological Survey (USGS) from tellurometer surveys and Navy air photos, 1960-62. Named by Advisory Committee on Antarctic Names (US-ACAN) for Dr. Mort D. Turner of the National Science Foundation who has been Program Manager for Polar Earth Sciences, Division of Polar Programs, since 1959. Turner studied the geology of the dry valley areas near McMurdo Sound, 1959-60, and in several subsequent seasons served as United States Antarctic Research Program (USARP) Representative in Antarctica.

Turner Island
Turner Island (-68.55°N, 77.88333°W) is an island lying 0.5 nautical miles (0.9 km) northwest of Bluff Island and 2.5 nautical miles (4.6 km) west of Breidnes Peninsula, Vestfold Hills, in Prydz Bay. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37. Remapped by ANARE (Australian National Antarctic Research Expeditions) (1957-58) and named for P.B. Turner, radio officer at Davis Station in 1958. == See also == * List of antarctic and sub-antarctic islands

Turnpike Bluff
Turnpike Bluff (-80.73333°N, -30.06667°W) is a conspicuous rock bluff at the southwest extremity of the Shackleton Range, 5 nautical miles (9 km) southwest of Mount Homard. First mapped in 1957 by the Commonwealth Trans-Antarctic Expedition and so named because it marks the beginning of a badly crevassed area of Recovery Glacier through which the vehicles of the Commonwealth Trans-Antarctic Expedition had difficulty in passing on their journey from Shackleton Base to the South Pole in 1957.

Turnstile Ridge
Turnstile Ridge (-79.83333°N, 154.6°W) is a ridge about 9 nautical miles (17 km) long, lying 3 nautical miles (6 km) north of Westhaven Nunatak at the northwest extremity of Britannia Range. So named by the Darwin Glacier Party (1957) of the Commonwealth Trans-Antarctic Expedition because snow passages resembling turnstiles occur throughout its length.

Turpie Rock
Turpie Rock (-54.11667°N, -36.65°W) is a rock 1 m high, lying in the entrance to Hercules Bay off the north coast of South Georgia. Positioned by the SGS in the period 1951-57, and named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the Turpie, which was for many years used by the South Georgia Whaling Co. as a hulk at Leith Harbor and is now sunk there.

Turquet Point
Turquet Point (-65.05°N, -63.95°W) is a point marking the north extremity of Booth Island in the Wilhelm Archipelago. Probably first seen by the German expedition 1873-74, under Dallmann. The point was charted by the French Antarctic Expedition, 1903-05, under Charcot and named by him for J. Turquet, naturalist of the expedition.

Turret Cone
Turret Cone (-77.55°N, 166.43333°W) is a small summit (c.455 m) that is locally conspicuous, located 3.8 nautical miles (7 km) east of Cape Royds and 3 nautical miles (6 km) northeast of Cape Barne on Ross Island. Descriptively named by Griffith Taylor of the British Antarctic Expedition, 1910-13.

Turret Island
Turret Island (-71.36667°N, 169.21667°W) is a small island, ice covered except for the north face. It lies partly within the seaward terminus of Shipley Glacier, 1 nautical mile (1.9 km) west of Flat Island, along the north coast of Victoria Land. The rocky north end projecting from the glacier is suggestive of a turret. Charted and named by the Northern Party, led by Campbell, of the British Antarctic Expedition, 1910-13. == See also == * List of antarctic and sub-antarctic islands

Turret Nunatak
Turret Nunatak (-82.41667°N, 158°W) is an elongated nunatak, 1,960 m, standing west of Cobham Range in the lower portion of Lucy Glacier. Mapped by the northern party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1961-62) and so named because of the turreted cliffs on its southern side.

Turret Peak
Turret Peak (-72.26667°N, 166.1°W) is a prominent rock peak, 2,790 m, standing 7 nautical miles (13 km) northwest of Crosscut Peak in Millen Range. The peak is topped with a 10 m vertical spire, or tower, which is an excellent landmark. Named for its distinctive appearance by the Southern party of NZFMCAE, 1962-63.

Turret Point
Turret Point (-62.08333°N, -57.91667°W) is a point marked by conspicuous high rock stacks, forming the east limit of King George Bay on the south coast of King George Island, in the South Shetland Islands. The point was charted in 1937 by DI personnel on the Discovery II who gave the name Turret Rocks, but this has led to confusion with a group of rocks lying close offshore. The United Kingdom Antarctic Place-Names Committee (UK-APC) recommended in 1960 that since the feature originally named is a land feature, the term point be used to avoid confusion and ambiguity.

Turret Ridge
Turret Ridge (-72.23333°N, 166.21667°W) is a ridge about 5 nautical miles (9 km) long extending northeast from Turret Peak, Millen Range, in Victoria Land. Visited by a New Zealand Antarctic Research Program (NZARP) geological party led by R.H. Findlay, 1981-82, and named in association with Turret Peak.

The Turret
The Turret (-60.66667°N, -45.15°W) is a conspicuous rocky headland, 460 m high, at the south side of the entrance to Gibbon Bay on the east coast of Coronation Island, in the South Orkney Islands. Probably first sighted by Captain George Powell and Captain Nathaniel Palmer who discovered these islands in December 1821. Charted and given this descriptive name by DI personnel on the Discovery II in 1933.

Turtle Island
Turtle Island (-66.06667°N, -65.85°W) is a small island which is the northwesternmost of the Saffery Islands, lying 6 nautical miles (11 km) west of Black Head, off the west coast of Graham Land. Discovered and named by the British Graham Land Expedition (BGLE), 1934-37, under Rymill. == See also == * List of antarctic and sub-antarctic islands

Turtle Peak
Turtle Peak (-75.36667°N, -111.3°W) is a conspicuous, nearly bare rock summit rising to 600 nautical miles (1100 km) south of Hedin Nunatak. The peak is joined at its south side to an ice-covered spur which descends southwest from Mount Murphy, on Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1959-66. Named by Advisory Committee on Antarctic Names (US-ACAN) after John P. Turtle, aurora researcher at Byrd Station in 1962.

Turtle Rock
Turtle Rock (-77.73333°N, 166.76667°W) is a small island lying in Erebus Bay close west of Hut Point Peninsula, Ross Island. Discovered by the Discovery expedition, 1901-04, under Scott, and so named because of its low rounded appearance.

Tusing Peak
Tusing Peak (-76.85°N, -126°W) is a snow-capped peak (2,650 m) rising from the central portion of Mount Hartigan in the Executive Committee Range, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy trimetrogon photography, 1958-60. Named by Advisory Committee on Antarctic Names (US-ACAN) for Allen D. Tusing, meteorologist at Byrd Station, 1959.

The Tusk
The Tusk (-84.86667°N, -168.25°W) is a sharply pointed peak of white marble, about 460 m high, in the east part of Mayer Crags. It stands 1.5 nautical miles (2.8 km) south of Mount Henson at the west side of the terminus of Liv Glacier. A descriptive name given by the Southern Party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1963-64.

Tussebrekka Slope
Tussebrekka Slope (-72.13333°N, 6.4°W) is a mainly ice-covered slope, about 6 nautical miles (11 km) long, at the southwest side of the head of Lunde Glacier in the Muhlig-Hofmann Mountains, Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by the Norwegian Antarctic Expedition (1956-60) and named Tussebrekka (the goblin slope).

Tussenobba Peak
Tussenobba Peak (-72°N, 6.25°W) is a peak, 2,665 m, rising 6 nautical miles (11 km) northeast of Halsknappane Hills in the east part of the Muhlig-Hofmann Mountains in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by the Norwegian Antarctic Expedition (1956-60) and named Tussenobba.

Tussock Island
Tussock Island (-54.48333°N, -37.11667°W) is an island 0.2 nautical miles (0.4 km) long, lying off the west side of Annenkov Island, South Georgia. Following geological work by British Antarctic Survey (BAS), 1972-73, it was named after the thick mantle of tussock grass (Poa flabellata) that grows on the island. == See also == * List of antarctic and sub-antarctic islands

Tustane Peaks
Tustane Peaks (-72.13333°N, 25.28333°W) is a group of peaks at the head of Koms Glacier in the Sor Rondane Mountains. Mapped by Norwegian cartographers in 1957 from air photos taken by U.S. Navy Operation Highjump, 1946-47, and named Tustane (the clumps).

Tutton Point
Tutton Point (-66.88333°N, -67.6°W) is the southwestern point of Liard Island in Hanusse Bay, Graham Land. This point is a landing place, the start of a route into the interior of the island. Mapped from air photos taken by Ronne Antarctic Research Expedition (RARE) (1947-48) and Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE) (1956-57). Named by United Kingdom Antarctic Place-Names Committee (UK-APC) for Alfred E.H. Tutton (1864-1938), British mineralogist, author of The Natural History of Ice and Snow Illustrated from the Alps.

Mount Tuve
Mount Tuve (-73.78333°N, -80.13333°W) is a mountain (935 m) whose summit rises above the ice surface just south of the base of Wirth Peninsula, Ellsworth Land. Discovered by Ronne Antarctic Research Expedition (RARE), 1947-48, under Finn Ronne. He named it for Merle A. Tuve, Director of the Department of Terrestrial Magnetism of Carnegie Institution, Washington, DC, who furnished instruments for the expedition.

Cape Tuxen
Cape Tuxen (-65.26667°N, -64.13333°W) is a rocky cape forming the south side of the entrance to Waddington Bay on the west coast of Graham Land. Discovered and named by the Belgian Antarctic Expedition, 1897-99, under Gerlache.

Tverrbrekka Pass
Tverrbrekka Pass (-72.23333°N, 1.31667°W) is an east-west pass through the Sverdrup Mountains between Vendeholten Mountain and Tverrveggen Ridge, in Queen Maud Land. Photographed from the air by the German Antarctic Expedition (1938-39). Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and air photos by the Norwegian expedition (1958-59) and named Tverrbrekka (the transverse slope).

Tverregg Glacier
Tverregg Glacier (-73.45°N, -3.6°W) is a glacier between Heksegryta Peaks and Tverregga Spur in the Kirwan Escarpment, Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and additional air photos (1958-59), and named Tverreggbreen (the transverse ridge glacier).

Tverregga Spur
Tverregga Spur (-73.38333°N, -3.6°W) is a spur 3 nautical miles (6 km) west of Mount Hallgren, in the Kirwan Escarpment of Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and additional air photos (1958-59), and named Tverregga (the transverse ridge).

Tverreggtelen Hill
Tverreggtelen Hill (-73.4°N, -3.55°W) is a hill immediately southeast of Tverregga Spur in the Kirwan Escarpment, Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and additional air photos (1958-59), and named in association with Tverregga Spur.

Tverrnipa Peak
Tverrnipa Peak (-72.25°N, 1.31667°W) is a peak, 2,195 m, surmounting the north end of Tverrveggen Ridge in the Sverdrup Mountains, Queen Maud Land. Photographed from the air by the German Antarctic Expedition (1938-39). Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and air photos by the Norwegian expedition (1958-59) and named Tverrnipa (the transverse peak).