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Uberuaga Island
Uberuaga Island (-77.88333°N, 165.28333°W) is an island 0.5 nautical miles (0.9 km) long that is the E-most feature in Dailey Islands, McMurdo Sound. Named after Julia Mary Uberuaga, who from 1979-99 made 20 consecutive Antarctic seasonal deployments working for contractors in support of United States Antarctic Program (USAP). She worked at South Pole Station as general field assistant the first two seasons; from 1981, worked for 15 seasons as heavy equipment operator at Williams Field, McMurdo Sound, with assignments at field camps including Siple Dome, Siple Station, and Byrd Surface Camp. The last few seasons she operated a Caterpillar D7 Pearl on McMurdo Ice Shelf. == See also == * List of antarctic and sub-antarctic islands

Mount Ubique
Mount Ubique (-81.5°N, 160.53333°W) is a peak, 935 m, standing 4 nautical miles (7 km) south of Hermitage Peak in the Surveyors Range. Named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1960-61) for the Royal Engineer's motto, meaning "everywhere."

Ueda Glacier
Ueda Glacier (-75.25°N, -64.58333°W) is a large glacier flowing eastward along the south side of the Scaife Mountains to enter Hansen Inlet near the base of Antarctic Peninsula. 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 Herbert T. Ueda who, with B. Lyle Hansen, was in charge of the deep core drilling program at Byrd Station, summers 1966-67 and 1967-68.

Ufs Island
Ufs Island (-67.46667°N, 61.13333°W) is a rocky island 2 nautical miles (3.7 km) wide, lying in the east part of Howard Bay. Cape Simpson, the north end of this island, was discovered by the British Australian New Zealand Antarctic Research Expedition (BANZARE) under Mawson in February 1931, but the feature's insularity was first recognized by Norwegian cartographers working from aerial photographs taken by the Lars Christensen Expedition, 1936-37. They named it Ufsoy (bluff island). == See also == * List of antarctic and sub-antarctic islands

Ufsebotnen Cirque
Ufsebotnen Cirque (-71.4°N, 13.15°W) is a cirque 1 nautical mile (1.9 km) north of the summit of Mount Schicht in the Gruber Mountains of the Wohlthat Mountains, Queen Maud Land. Discovered and plotted from air photos by German Antarctic Expedition, 1938-39. Replotted from air photos and surveys by Norwegian Antarctic Expedition, 1956-60, and named Ufsebotnen (the bluff cirque).

Ufsebrotet Bluff
Ufsebrotet Bluff (-71.38333°N, 13.28333°W) is a steep bluff located 2 nautical miles (3.7 km) south of Mount Zimmermann in the central Gruber Mountains of the Wohlthat Mountains, Queen Maud Land. Discovered and plotted from air photos by German Antarctic Expedition, 1938-39. Replotted from air photos and surveys by Norwegian Antarctic Expedition, 1956-60, and named Ufsebrotet.

Ufsekammen Ridge
Ufsekammen Ridge (-71.4°N, 13.23333°W) is an arc-shaped rock ridge, 3 nautical miles (6 km) long, between Mount Schicht and Ufsebrotet Bluff in the Gruber Mountains of the Wohlthat Mountains, Queen Maud Land. Discovered and plotted from air photos by German Antarctic Expedition, 1938-39. Replotted from air photos and surveys by Norwegian Antarctic Expedition, 1956-60, and named Ufsekammen (the bluff ridge).

Ugolini Peak
Ugolini Peak (-78.01667°N, 161.51667°W) is a sharp rock peak, over 2,200 m, surmounting the central part of a large ice-free massif 6 nautical miles (11 km) south of Knobhead, at the south side of upper Ferrar Glacier in Victoria Land. Named by Advisory Committee on Antarctic Names (US-ACAN) for Fiorenzo C. Ugolini, who studied Antarctic soil processes in the McMurdo Sound area in 1961-62 and 1962-63.

Ugolini Ridge
Ugolini Ridge (-78.03333°N, 161.43333°W) is a named in association with Ugolini Peak.

Uksen Island
Uksen Island (-67.35°N, 60.15°W) is a steep-sided, isolated island lying 4 nautical miles (7 km) northeast of Tilley Nunatak, off the coast of Mac. Robertson Land. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Uksen (the ox). == See also == * List of antarctic and sub-antarctic islands

Ula Point
Ula Point (-64.08333°N, -57.15°W) is a low ice-covered point on the northeast coast of James Ross Island, 5 nautical miles (9 km) northwest of Cape Gage. First seen and roughly surveyed by Swedish Antarctic Expedition, 1901-04, under Otto Nordenskjold. Resurveyed by Falkland Islands Dependencies Survey (FIDS) in 1945. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) for Anton Olsen Ula, boatswain on the Antarctic the ship of the above Swedish expedition.

Ulendet Crevasses
Ulendet Crevasses (-72.85°N, -0.98333°W) is a crevasse field about 7 nautical miles (13 km) long in the Jutulstraumen Glacier, about 15 nautical miles (28 km) northeast of Neumayer Cliffs 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 Ulendet (the rough ground).

Mount Ulla
Mount Ulla (-77.53333°N, 162.4°W) is a sharp peak between Meserve and Hart Glaciers in the Asgard Range, Victoria Land. The summit is a knife-edge ridge which drops away on both sides. Named by the Victoria University of Wellington Antarctic Expedition (VUWAE), 1958-59, after one of the Norse gods.

Ullmann Point
Ullmann Point (-62.08333°N, -58.38333°W) is a point marking the southwest end of Ullmann Spur in Martel Inlet, Admiralty Bay, on King George Island in the South Shetland Islands. The point was charted by the French Antarctic Expedition, 1908-10, under Charcot. It was named in association with Ullmann Spur some 20 years later.

Ullmann Spur
Ullmann Spur (-62.06667°N, -58.36667°W) is a mountainous ridge, 275 m, situated centrally at the head of Martel Inlet, Admiralty Bay, on King George Island in the South Shetland Islands. Charted and named by the French Antarctic Expedition, 1908-10, under Charcot.

Mount Ulmer
Mount Ulmer (-77.58333°N, -86.15°W) is a prominent peak (2,775 m) situated 2 nautical miles (3.7 km) north of Mount Washburn in the northern part of the Sentinel Range, Ellsworth Mountains. Discovered in his trans-Antarctic flight, November 23, 1935, by Lincoln Ellsworth who called it Mount Mary Louise Ulmer, after his wife. The peak has been reidentified by comparison of Ellsworth's photograph with those taken in 1959 by the U.S. Navy.

Ulu Peninsula
Ulu Peninsula (-63.93333°N, -58.08333°W) is that portion of James Ross Island northwest of the narrow neck of land between Rohss Bay and Croft Bay, extending from Cape Obelisk to Cape Lachman. Named descriptively by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1987. In plan view the peninsula is shaped like an ulu, a type of knife traditionally used by Eskimo women.

Ulvetanna Peak
Ulvetanna Peak (-71.85°N, 8.33333°W) is a sharp peak, 2,930 m, about 2 nautical miles (3.7 km) north of Kinntanna Peak in the east part of Fenriskjeften Mountain in Queen Maud Land. Mapped from surveys and air photos by Norwegian Antarctic Expedition (1956-60) and named Ulvetanna (the wolf tooth).

Umber Island
Umber Island (-69.21667°N, -72°W) is a rocky island, 1.5 nautical miles (2.8 km) long, lying 6 nautical miles (11 km) northwest of Dint Island in Lazarev Bay, off the west side of Alexander Island. Mapped from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947-48, by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) because on the RARE photos the island appears in deep shadow cast by the Havre Mountains to the north. == See also == * List of antarctic and sub-antarctic islands

Mount Umbriel
Mount Umbriel (-71.6°N, -68.88333°W) is a peak, 1,500 m, overlooking the head of Venus Glacier in the east part of Alexander Island. First mapped from air photos taken by the Ronne Antarctic Research Expedition (RARE) 1947-48 by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) from association with nearby Uranus Glacier, Umbriel being one of the satellites of Uranus.

Umeboshi Rock
Umeboshi Rock (-68.05°N, 43.11667°W) is a rock exposure 4 nautical miles (7 km) east-northeast of Akebono Rock on the coast of Queen Maud Land. Mapped from surveys and air photos by Japanese Antarctic Research Expedition (JARE), 1957-62, and named Umebushi-iwa (rumpled rock).

Umitaka Bank
Umitaka Bank (-67.41667°N, 167°W) is a bank named for the research vessel Umitaku-Maru of the Tokyo University of Fisheries, which took soundings in the area (1964-65). Name approved 4/80 (ACUF 201).

Underwood Glacier
Underwood Glacier (-66.58333°N, 108°W) is a channel glacier about 15 nautical miles (28 km) long, flowing to the Antarctic coast between Reist Rocks and Cape Nutt. Mapped (1955) by G.D. Blodgett from aerial photographs taken by U.S. Navy Operation Highjump (1947). Named by Advisory Committee on Antarctic Names (US-ACAN) after Lieutenant Joseph A. Underwood, U.S. Navy, who served on the sloop Vincennes of the United States Exploring Expedition (1838-42) under Lieutenant Charles Wilkes.

Mount Underwood
Mount Underwood (-68.13333°N, 49.35°W) is an elongated mountain 2 nautical miles (3.7 km) east of Mount Flett in the central Nye Mountains. Plotted from air photos taken from ANARE (Australian National Antarctic Research Expeditions) aircraft in 1956 and 1957. Named by ANC for R. Underwood, geophysicist at Wilkes Station in 1959.

Undine Harbor
Undine Harbor (-54.03333°N, -37.96667°W) is a small bay at the head of the embayment between Cape Paryadin and Cape Chaplin on the south coast of South Georgia. This feature (with Johan Harbor, Coal Harbor, and Frida Hole, q.v.) may form, part of the feature called "Adventure Bay" by James Weddell, 1823, and "Discovery Bay" by DI, 1929. The recommended name Undine Harbor, after the sealing ship Undine of the Compania Argentina de Pesca, has been consistently used for this bay since about 1912.

Undine South Harbor
Undine South Harbor (-54.51667°N, -36.55°W) is a bay, 6 nautical miles (11 km) wide and indenting 2 nautical miles (3.7 km) between Ducloz Head and Leon Head along the south coast of South Georgia. The name appears to have been given by the German Antarctic Expedition under Filchner, 1911-12. The Pesca, was at South Georgia in the 1911-12 season and was made available for use by the Filchner expedition.

Ungane Islands
Ungane Islands (-69.26667°N, 39.48333°W) is a three small islands lying 4 nautical miles (7 km) west-northwest of Hamnenabben Head 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 Ungane (the young ones). == See also == * List of antarctic and sub-antarctic islands

Unger Island
Unger Island (-70.68333°N, 166.91667°W) is a small, ice-free island, the westernmost of the Lyall Islands, lying 4 nautical miles (7 km) southeast of Cape Hooker in the west side of the entrance to Yule Bay, Victoria Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-63. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Pat B. Unger, U.S. Navy Reserve, Medical Officer at Little America V, 1957. == See also == * List of antarctic and sub-antarctic islands

Unger Peak
Unger Peak (-79.35°N, -86.16667°W) is a conspicuous, mainly ice-covered peak which rises above the plateau at the south end of Founders Escarpment. It stands 2 nautical miles (3.7 km) north-northwest of Zavis Peak in the Heritage Range, Ellsworth Mountains. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1961-66. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Maurice H. Unger, U.S. Navy, navigator on photographic flights over Marie Byrd and Ellsworth Lands during Deep Freeze 1965 and 1966.

Mount Unicorn
Mount Unicorn (-71.26667°N, -67.11667°W) is the northernmost of the Batterbee Mountains, located about 6 nautical miles (11 km) northwest of Mount Ness. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) after the constellation of Monoceros (The Unicorn).

Union Glacier
Union Glacier (-79.75°N, -82.5°W) is a large, heavily-crevassed glacier which receives the flow of several tributaries and drains through the middle of the Heritage Range, Ellsworth Mountains. The glacier drains from the plateau at Edson Hills on the west side of the range and flows east between Pioneer Heights and Enterprise Hills. Union Glacier was mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1961-66. The name was applied by Advisory Committee on Antarctic Names (US-ACAN) in association with the name Heritage Range.

University Peak
University Peak (-77.86667°N, 160.73333°W) is a peak at the head of University Valley, 2.5 nautical miles (4.6 km) south-southwest of West Beacon, in Victoria Land. Named by United States Antarctic Research Program (USARP) researchers Heinz Janetschek, biologist at McMurdo Station, 1961-62, and Fiorenzo Ugolini, geologist at McMurdo Station, 1961-62, after their respective university affiliation, Leopold-Franzens-Universitat at Innsbruck, Austria, and Rutgers University at New Brunswick, New Jersey.

University Valley
University Valley (-77.86667°N, 160.66667°W) is a valley about 1 nautical mile (1.9 km) long, lying next northeast of Farnell Valley in the Beacon Valley area of Victoria Land. Named in January 1962 by United States Antarctic Research Program (USARP) researchers Heinz Janetschek and Fiorenzo Ugolini after their respective university affiliation, Leopold-Franzens-Universitat at Innsbruck, Austria, and Rutgers University at New Brunswick, New Jersey.

Unneruskollen Island
Unneruskollen Island (-70.5°N, -6.16667°W) is an ice-covered island lying north of Halvfarryggen Ridge and between the Ekstrom and Jelbart Ice Shelves, on the coast of Queen Maud Land. First mapped by Norwegian-British-Swedish Antarctic Expedition (NBSAE), 1949-52. It was named Unneruskollen by the Norwegian Antarctic Expedition, 1956-60. == See also == * List of antarctic and sub-antarctic islands

Lake Unter-See
Lake Unter-See (-71.33333°N, 13.45°W) is a meltwater lake 3 nautical miles (6 km) southwest of Lake Ober-See. It occupies the south part of the large cirque indenting the north slopes of the Gruber Mountains in central Queen Maud Land. Discovered by the German Antarctic Expedition under Ritscher, 1938-39, who named it Unter-See (lower lake).

Unwin Cove
Unwin Cove (-63.31667°N, -57.9°W) is a cove immediately southeast of Toro Point, Trinity Peninsula. The cove was charted by the Chilean Antarctic Expedition, 1947-48, which named it for First Lieutenant Tomas Unwin Lambie, a naval officer of this expedition and the commander of the ship 1949-50 and 1950-51.

Unwin Ledge
Unwin Ledge (-77.58333°N, 162.61667°W) is a

Upper Island
Upper Island (-66°N, -65.65°W) is a narrow island at the north side of Mutton Cove, lying between Cliff and Harp Islands and 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

Upper Jaw Glacier
Upper Jaw Glacier (-78.35°N, 162.95°W) is an on a map, the combined shapes of the Upper and Lower Jaw Glaciers resemble a gaping mouth, an idea strengthened by the proximity of Shark Fin.

Upper Staircase
Upper Staircase (-78.25°N, 161°W) is the upper eastern portion of Skelton Glacier, just north of The Landing, which merges into the Skelton Neve in Victoria Land. Surveyed in 1957 by the New Zealand party of the Commonwealth Trans-Antarctic Expedition (1956-58) and so named because of its staircase effect in being the key for the approach to the polar plateau.

Upstream Delta Camp
Upstream Delta Camp (-81°N, -140°W) is a

Upton Rock
Upton Rock (-62.2°N, -59.13333°W) is a rock lying 3 nautical miles (6 km) northwest of Flat Top Peninsula, King George Island, in the South Shetland Islands. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1961 for Benjamin Upton, Master of the American sealing vessel Islands in 1821-22.

Uragannyy Point
Uragannyy Point (-69.95°N, 12.83333°W) is an ice point along the west edge of Lazarev Ice Shelf about 3 nautical miles (6 km) north of Leningradskiy Island, Queen Maud Land. Mapped by the Soviet Antarctic Expedition in 1959. They named it Mys Uragannyy (hurricane point) because a strong hurricane occurred during the stay of the ship Ob' near this point.

Uranus Glacier
Uranus Glacier (-71.4°N, -68.33333°W) is a glacier on the east coast of Alexander Island, 20 nautical miles (37 km) long and 6 nautical miles (11 km) wide at its mouth, flowing east into George VI Sound immediately south of Fossil Bluff Probably first seen by Lincoln Ellsworth who flew directly over it and photographed segments of this coast on November 23, 1935. The portion near the mouth of the glacier was first roughly surveyed in 1936 by the British Graham Land Expedition (BGLE). Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the planet Uranus following resurvey of its lower portions by the Falkland Islands Dependencies Survey (FIDS) in 1948 and 1949. The entire glacier was mapped from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947-48, by Searle of the FIDS in 1960.

Urban Point
Urban Point (-79.8°N, -82°W) is a sharp rock point lying 2 nautical miles (3.7 km) east of the terminus of Ahrnsbrak Glacier on the north side of the Enterprise Hills, Heritage Range. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1961-66. Named by Advisory Committee on Antarctic Names (US-ACAN) for Verdis D. Urban, meteorologist with the Ellsworth Station winter party, 1958.

Urbanak Peak
Urbanak Peak (-84.63333°N, -111.91667°W) is a peak with exposed rock on the north side, situated along Mirsky Ledge in the Ohio Rarrge, Horlick Mountains. Surveyed by the United States Antarctic Research Program (USARP) Horlick Mountains Traverse party in December 1958. Named by US-CAN for Richard L. Urbanak, meteorologist at Byrd Station in 1960.

Urchin Rock
Urchin Rock (-65.31667°N, -64.26667°W) is a rock, over which the sea breaks, lying 2.3 nautical miles (4.3 km) west of the largest of the Berthelot Islands, off the west coast of Graham Land. First shown on an Argentine government chart of 1957. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 because the rock is a hazard on the edge of Grandidier Channel; an urchin is a roguish or mischievous boy.

Urfjell Cliffs
Urfjell Cliffs (-73.88333°N, -5.28333°W) is a line of rock cliff and spurs trending southwest for 10 nautical miles (18 km) from Urfjelldokka Valley, forming a part of the Kirwan Escarpment 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). They gave the Urfjell (mountain with rock-strewn slopes).

Urfjelldokka Valley
Urfjelldokka Valley (-73.83333°N, -4.75°W) is a broad ice-filled valley between Urfjell Cliffs and Skappelnabben Spur along the Kirwan Escarpment 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). Named in association with Urfjell Cliffs.

Mount Uritorco
Mount Uritorco (-62.93333°N, -60.71667°W) is a mountain surmounting the southern part of Telefon Ridge on Deception Island, it, the South Shetland Islands. The name appears on an Argentine chart of 1956.

Urnosa Spur
Urnosa Spur (-73.78333°N, -5.03333°W) is a spur at the west side of Urfjelldokka Valley, in the southwest part of the Kirwan Escarpment 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). They gave the name Urnosa (the rock-strewn nose).

Uruguay Cove
Uruguay Cove (-60.75°N, -44.71667°W) is a cove in the west part of Jessie Bay on tire north coast of Laurie Island, in the South Orkney Islands. Charted in 1903 by the Scottish National Antarctic Expedition under W.S. Bruce. He named the cove after the Argentine corvette Uruguay which for many years after 1904 carried relief parties to the Argentine meteorological station near the cove.

Uruguay Island
Uruguay Island (-65.23333°N, -64.23333°W) is an island 0.5 nautical miles (0.9 km) long with a cove indenting its west side, lying between Irizar Island and Corner Island in the Argentine Islands, Wilhelm Archipelago. Discovered by the French Antarctic Expedition, 1903-05, under J.B. Charcot, and named by him after the Argentine corvette The island was recharted in 1935 by the British Graham Land Expedition (BGLE) under John Rymill. == See also == * List of antarctic and sub-antarctic islands

Urvantsev Rocks
Urvantsev Rocks (-72.1°N, 5.61667°W) is a groups of rocks lying 5 nautical miles (9 km) southeast of Skorvetangen Spur in the Muhlig-Hofmann Mountains, Queen Maud Land. Mapped by Norsk Polarinstitutt from surveys and air photos by Norwegian Antarctic Expedition, 1956-60. Also mapped by Soviet Antarctic Expedition in 1961 and named for geologist N.N. Urvantsev.

Usarp Mountains
Usarp Mountains (-71.16667°N, 160°W) is a major Antarctic mountain chain, lying westward of the Rennick Glacier and trending north-south for about 120 miles. The feature is bounded to the north by Pryor Glacier and the Wilson Hills. Its important constituent parts include Pomerantz Tableland, Daniels Range, Emlen Peaks, Helliwell Hills and Morozumi Range. Parts of these mountains were discovered and first photographed from aircraft of the U.S. Navy Operation Highjump, 1946-47. They were completely mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960-63. The name is an acronym of the United States Antarctic Research Program, and was applied by Advisory Committee on Antarctic Names (US-ACAN) in recognition of the accomplishments of that program in Antarctica.

Usas Escarpment
Usas Escarpment (-76°N, -130°W) is an expansive but discontinuous north-facing escarpment in Marie Byrd Land. It is about 200 nautical miles (370 km) long, extending roughly west to east along the parallel of 76S from where the elevation of the snow surface descends toward the Ruppert Coast and Hobbs Coast. The position of the escarpment coincides with the north slopes of the Flood Range, Ames Range, McCuddin Mountains, and the eastern peaks of Mount Galla, Mount Aldaz and Benes Peak. The escarpment was observed by members of the United States Antarctic Service, 1939-41, and in ensuing scientific reports was referred to as "76th Parallel Escarpment." The approved name is an acronym for the discovery expedition.

Useful Island
Useful Island (-64.71667°N, -62.86667°W) is an island 2 nautical miles (3.7 km) west of Ronge Island, with a string of rocks between, lying in Gerlache Strait off the west coast of Graham Land. Discovered by the Belgian Antarctic Expedition, 1897-99, under Gerlache. The name appears on a chart based upon a 1927 survey by DI personnel on the Discovery. == See also == * List of antarctic and sub-antarctic islands

Usher Glacier
Usher Glacier (-62.03333°N, -58.61667°W) is a glacier nearly 4 nautical miles (7 km) long, flowing northwest into the sea between Stigant and Davey Points on the north coast of King George Island, in the South Shetland Islands. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for J. Usher, Master of the Caraquet from Liverpool, who visited the South Shetland Islands in 1821-22.

Mount Usher
Mount Usher (-84.95°N, 172.06667°W) is a distinctive mountain overlooking the south side of Keltie Glacier about 4 nautical miles (7 km) southwest of the mouth of Brandau Glacier. Discovered and named by the British Antarctic Expedition (1907-09). Identification of this feature varied on subsequent maps. The present description follows the H.E. Saunders map of 1961 which has now been generally accepted.

Usnea Plug
Usnea Plug (-62.63333°N, -61.08333°W) is a volcanic plug, 30 m from base to summit, standing less than 0.5 nautical miles (0.9 km) southwest of Chester Cone in Byers Peninsula on the west end of Livingston Island, South Shetland Islands. Named by K.R. Everett, Institute of Polar Studies, Ohio State University, who visited the area in February 1969. The name derives from the genus of lichen, Usnea, prevalent on the plug and in this vicinity.

Usnea Ridge
Usnea Ridge (-60.7°N, -45.63333°W) is a ridge at an elevation of 100-160 m, extending north-northwest from Jane Peak to Spindrift Col in central Signy Island, South Orkney Islands. This ridge was an ecological study site for British Antarctic Survey (BAS) biologists. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1991 after lichens of the genus Usnea, which form a main element of the plant life on the ridge.

Utgard Peak
Utgard Peak (-77.63333°N, 161.15°W) is a prominent peak, 2,050 m, located 0.8 nautical miles (1.5 km) north-northeast of Wolak Peak in the Asgard Range, Victoria Land. Named by the New Zealand Antarctic Place-Names Committee (NZ-APC) in 1982 from a proposal by G.G.C. Claridge, soil scientist with the DSIR, New Zealand. One of a group of names from Norse mythology in Asgard Range and Jotunheim Valley. Named after Utgard, a fortress in Jotunheim, home of the giants.

Utholmen Island
Utholmen Island (-68.93333°N, 39.51667°W) is the northwesternmost island in the Flatvaer Islands, lying in Lutzow-Holm Bay. Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936-37, and named Utholmen (the outer is land). == See also == * List of antarctic and sub-antarctic islands

Utkikken Hill
Utkikken Hill (-71.53333°N, -1.01667°W) is the northeasternmost rock summit on the Ahlmann Ridge, standing 4 nautical miles (7 km) northeast of Trollkjelpiggen Peak where it overlooks the mouth of Jutulstraumen Glacier and the coastal ice shelf, 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 Utkikken (the look out).

Utopia Glacier
Utopia Glacier (-71.85°N, -68.26667°W) is an encircled by Mariner Hill, Syrtis Hill, Natal Ridge, and Ares Cliff; the feature was named for Utopia Planitia on the planet Mars, which was the landing site of the NASA Viking 2 Lander Mission on 3 September 1976. This name was applied to the feature by members of the Mars Oasis Party who were searching for life on the glacier, much in the same manner as the satellite was on the planet Mars.

Utrakket Valley
Utrakket Valley (-73.66667°N, -4.41667°W) is an ice-filled valley between Skappelnabben Spur and Enden Point 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 Utrakket.

Utrinden Point
Utrinden Point (-73.83333°N, -5.3°W) is a rock point at the northwest side of Kuven Hill, near the southwest end of the Kirwan Escarpment in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by NGSAE (1949-52) and additional air photos (1958-59), and named Utrinden (the outer ridge).

Utrista Rock
Utrista Rock (-71.58333°N, 10.53333°W) is an isolated rock lying 10 nautical miles (18 km) northeast of Mount Dallmann, at the northeast extremity of the Orvin Mountains in Queen Maud Land Discovered and photographed by the German Antarctic Expedition 1938-39. Mapped by Norway from air photos and surveys by Norwegian Antarctic Expedition, 1956-60, and named Utrista (the outer ridge).

Utsteinen Nunatak
Utsteinen Nunatak (-71.96667°N, 23.56667°W) is a nunatak standing 4 nautical miles (7 km) north of Viking Heights and the main group 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 Utsteinen (the outer stone) because of its position.

Utstikkar Bay
Utstikkar Bay (-67.55°N, 61.46667°W) is a bay 4 nautical miles (7 km) wide, indenting the coast immediately east of Utstikkar Glacier. Mapped by Norwegian cartographers from aerial photos taken by the Lars Christensen Expedition, 1936-37, and so named by them because the bay is contiguous with Utstikkar Glacier.

Utstikkar Glacier
Utstikkar Glacier (-67.55°N, 61.33333°W) is a broad glacier flowing north from the vicinity of Moyes Peak and terminating in Utstikkar Glacier Tongue just west of Utstikkar Bay. This glacier was mapped and named Utstikkarbreen (the out-jutting glacier) by Norwegian cartographers working from aerial photographs taken by the Lars Christensen Expedition in January-February 1937.

Utstikkar Glacier Tongue
Utstikkar Glacier Tongue (-67.5°N, 61.36667°W) is a glacier tongue forming the seaward extension of Utstikkar Glacier, just west of Utstikkar Bay. The glacier tongue was mapped and named by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition in January-February 1937. The word Utstikkar refers to something jutting out and is descriptive of the conspicuous projection of the glacier tongue.

Utz Spur
Utz Spur (-78.36667°N, 162.33333°W) is a named after Loreen G. Utz, United States Geological Survey (USGS) cartographer, a member of the satellite surveying team at South Pole Station, winter party 1983.

Uven Spur
Uven Spur (-73.93333°N, -5.33333°W) is a small rock spur just southwest of Tunga Spur, extending from the Kirwan Escarpment 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 Uven.

Uversnatten Rock
Uversnatten Rock (-72.96667°N, -3.9°W) is a small rock eminence 1 nautical mile (1.9 km) west of Huldreslottet Mountain, at the south end of Borg Massif in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949-52) and named Uversnatten.