Mill Glacier ( 85°10′S 168°30′E / 85.167°S 168.500°E / -85.167; 168.500 ) is a tributary glacier , 10 nautical miles (19 km) wide, flowing northwest between the Dominion Range and the Supporters Range into Beardmore Glacier , Antarctica. It was discovered by the British Antarctic Expedition, 1907–09 , and named for Hugh Robert Mill , a British geographer and Antarctic historian.
26-704: The Grosvenor Mountains , a group of widely scattered mountains and nunataks, rises above the polar plateau east of the head of Mill Glacier. The Mill Glacier is a valley glacier that flows down from the Grosvenor Mountains past Otway Massif , then between the Dominion Range and Supporters Range before joining the Beardmore Glacier. The head of the glacier is crossed by the Scott Icefalls. From there it flows northwest between
52-605: A group of widely scattered mountains and nunataks rising above the Antarctic polar plateau east of the head of Mill Glacier , extending from Mount Pratt in the north to the Mount Raymond area in the south, and from Otway Massif in the northwest to Larkman Nunatak in the southeast. The Grosvenor Mountains were discovered by Rear Admiral Richard E. Byrd on the Byrd Antarctic Expedition flight to
78-480: A mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They often form natural pyramidal peaks . Isolated nunataks are also called glacial islands, and smaller nunataks rounded by glacial action may be referred to as rognons . The word is of Greenlandic origin and has been used in English since the 1870s. The term nunatak is typically used in areas where
104-514: A permanent ice sheet is present and the ridge protrudes above the sheet. Nunataks present readily identifiable landmark reference points in glaciers or ice caps and are often named. While some are isolated, they can also form dense clusters, such as Queen Louise Land in Greenland. Nunataks are generally angular and jagged, hampering the formation of glacial ice on their tops, although snow can accumulate on them. This can contrast strongly with
130-627: The Aurora , the vessel which transported the Ross Sea Party of Shackleton's Imperial TransAntarctic Expedition (1914-17) from Australia to the Ross Sea. 85°46′S 176°13′E / 85.767°S 176.217°E / -85.767; 176.217 . A nunatak standing 5 nautical miles (9.3 km; 5.8 mi) south of Block Peak. Discovered by R. Admiral Byrd on the ByrdAE flight to
156-1003: The Advisory Committee on Antarctic Names (US-ACAN) for Robert W. Burgess, United States Antarctic Program (USARP) ionospheric physicist at South Pole Station in 1963. 85°19′S 167°10′E / 85.317°S 167.167°E / -85.317; 167.167 . An east-flowing glacier, 6 nautical miles (11 km; 6.9 mi) long, draining the east-central portion of the Dominion Range icecap. The glacier lies close south of Koski Glacier, whose flow it parallels, and terminates 2 nautical miles (3.7 km; 2.3 mi) northwest of Safety Spur . Named by US-ACAN for Charles H. Vandament, USARP ionospheric physicist at South Pole Station in 1962. 85°17′S 167°15′E / 85.283°S 167.250°E / -85.283; 167.250 . An east-flowing glacier, 7 nautical miles (13 km; 8.1 mi) long, draining
182-803: The NZGSAE (1961-62) for Captain Robert Falcon Scott . 85°20′S 171°00′E / 85.333°S 171.000°E / -85.333; 171.000 . A tributary glacier, about 10 nautical miles (19 km; 12 mi) wide, flowing west between Supporters Range and Otway Massif to enter Mill Glacier. Named by the NZGSAE (1961-62) in association with Mill Glacier. 85°26′S 171°55′E / 85.433°S 171.917°E / -85.433; 171.917 . A glacier, 7 nautical miles (13 km; 8.1 mi) long, flowing northwest through Otway Massif to enter Mill Stream Glacier. Named by
208-677: The South Pole in November 1929, and named by him for Gilbert Hovey Grosvenor , President of the National Geographic Society , which helped finance the expedition. Several peaks near Mount Raymond were apparently observed by Ernest Shackleton in 1908, although they were then considered to be a continuation of the Dominion Range . The Grosvenor Mountains extend south and east from the Otway Massif, which forms
234-534: The BrAE (1907-09) and named for Shackleton's daughter. The position agrees with that shown on Shackleton's map but the peak does not lie in the Dominion Range as he thought, being separated from that range by the Mill Glacier. 85°53′S 174°43′E / 85.883°S 174.717°E / -85.883; 174.717 . A rock peak, 2,820 metres (9,250 ft) high, standing on the southernmost ridge of
260-448: The BrAE (1907-09) as being part of the Dominion Range, but it is separated from that range by the flow of the Mill Glacier. Named by Shackleton for his wife, Lady Emily Dorman Shackleton . 85°52′S 174°15′E / 85.867°S 174.250°E / -85.867; 174.250 . Prominent peak, 2,870 metres (9,420 ft) high, standing 2.5 nautical miles (4.6 km; 2.9 mi) northwest of Mount Raymond. Discovered by
286-981: The ByrdAE flight to the South Pole in November 1929. Named by him for Albert H. Bumstead , chief cartographer of the National Geographic Society at that time, and inventor of the sun compass, a device utilizing shadows of the sun to determine directions in areas where magnetic compasses are unreliable. 85°42′S 173°49′E / 85.700°S 173.817°E / -85.700; 173.817 . A small rock nunatak, 2,785 metres (9,137 ft) high, standing 3 nautical miles (5.6 km; 3.5 mi) southwest of Mount Bumstead. Named by US-ACAN for William M. Aitken, USARP aurora scientist at South Pole Station, 1962. 85°50′S 174°20′E / 85.833°S 174.333°E / -85.833; 174.333 . A rock peak 2 nautical miles (3.7 km; 2.3 mi) north of Mount Cecily. Shown by
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#1732779783938312-432: The ByrdAE flight to the South Pole in November 1929. Named by him for William Block, son of Paul Block who was a patron of the expedition. 85°44′S 176°44′E / 85.733°S 176.733°E / -85.733; 176.733 . A nunatak, 2,780 metres (9,120 ft) high, about 3 nautical miles (5.6 km; 3.5 mi) northeast of Mount Block. Named by the NZGSAE (1961-62) for C.C. Mauger, crew member of
338-721: The Dominion Range to the west and the Otway Massif to the east. The Mill Stream Glacier, which is fed from the south by the Burgess Glacier, joins the Mill Glacier from the east to the north of the Otway Massif. The Vandement Glacier and the Koski Glacier enter from the Dominion Range to the west. The Mill Glacier flows past the Supporters Range to the east to join the Beardmore Glacier from
364-495: The Grosvenor Mountains, 2.5 nautical miles (4.6 km; 2.9 mi) southeast of Mount Cecily. Discovered by Shackleton of the BrAE (1907-09), who named this feature for his eldest son. The position agrees with that shown on Shackleton's map, but the peak does not lie in the Dominion Range as he thought, being separated from that range by Mill Glacier. 85°24′S 176°41′E / 85.400°S 176.683°E / -85.400; 176.683 . The northernmost nunatak in
390-613: The Grosvenor Mountains, standing just east of the head of Mill Stream Glacier, 17 nautical miles (31 km; 20 mi) north of Block Peak. Discovered by R. Admiral Byrd on the ByrdAE flight to the South Pole in November 1929, and named by him for Thomas B. Pratt, American financier and contributor to the expedition. Not: Stenhouse Nunatak. 85°41′S 176°13′E / 85.683°S 176.217°E / -85.683; 176.217 . A peak, 2,770 metres (9,090 ft) high, standing 4 nautical miles (7.4 km; 4.6 mi) northwest of Mauger Nunatak. Discovered by R. Admiral Byrd on
416-634: The South Pole in November 1929. Named by him for Paul Block, Jr., son of Paul Block, a patron of the expedition. 85°40′S 179°30′E / 85.667°S 179.500°E / -85.667; 179.500 . A small group of isolated nunataks at the east end of the Grosvenor Mountains, 6 nautical miles (11 km; 6.9 mi) north of Larkman Nunatak. Named by US-ACAN for Noel R. Hayman, USARP aurora scientist at Hallett Station, 1962. 85°46′S 179°23′E / 85.767°S 179.383°E / -85.767; 179.383 . A large, isolated rock nunatak, 2,660 metres (8,730 ft) high, at
442-556: The activities of Shirley (Mrs. James C.) Anderson of San Diego, CA, widely known as "Antarctica Mom" among United States personnel wintering over in Antarctica. In the years following 1961, Mrs. Anderson communicated with thousands of wintering personnel in Antarctica and her efforts contributed greatly to their morale. 85°29′S 172°47′E / 85.483°S 172.783°E / -85.483; 172.783 . Snow-covered heights, 3,220 metres (10,560 ft) high, forming
468-573: The east-central portion of the Dominion Range icecap. The glacier lies close north of Vandament Glacier, whose flow it parallels, and terminates at Mill Glacier just southeast of Browns Butte. Named by US-ACAN for Raymond J. Koski, USARP engineer on several traverses originating at the South Pole Station 1962-63, 1963–64 and 1964–65. Grosvenor Mountains The Grosvenor Mountains ( 85°40′S 175°0′E / 85.667°S 175.000°E / -85.667; 175.000 ) are
494-570: The highest summit, 3,240 metres (10,630 ft) high, on the ridge bordering the west side of Burgess Glacier. Named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Harry R. Spohn, United States Antarctic Research Program (USARP) meteorologist at South Pole Station , 1963. 85°25′S 172°16′E / 85.417°S 172.267°E / -85.417; 172.267 . The most prominent mountain, 3,195 metres (10,482 ft) high, in
520-564: The northeast part of Otway Massif, surmounting the north end of the ridge which borders the east side of Burgess Glacier. Named by US-ACAN for James D. Petlock, USARP ionospheric physicist at South Pole Station, 1963. 85°27′S 173°00′E / 85.450°S 173.000°E / -85.450; 173.000 . A peak, 3,260 metres (10,700 ft) high, in eastern Otway Massif, 5 nautical miles (9.3 km; 5.8 mi) southeast of Mount Petlock. Mapped by USGS from surveys and United States Navy air photos (1959-63). This name recognizes
546-796: The northwest end of the Grosvenor Mountains at the confluence of Mill Glacier and Mill Stream Glacier. Surveyed and named by the Southern Party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1961-62) for P.M. Otway, who had wintered over at Scott Base and was a member of this party and the Northern Party during the summer of 1960-61. Features of the Otway Massif include: 85°28′S 171°59′E / 85.467°S 171.983°E / -85.467; 171.983 . A prominent peak rising from Otway Massif, being
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#1732779783938572-891: The southeast angle of the juncture of the Mill Stream Glacier and the Mill Glacier . Features of the Otway Massif, which is split by the Burgess Glacier , include Mount Spohn, Mount Petlock, Mom Peak and Johnston Heights. To the southeast are Mount Bumstead, Aitken Nunatak, Mount Emily, Mount Cecily and Mount Raymond. Further east are Mount Pratt, Block Peak, Mauger Nunatak, Mount Block, Hayman Nunataks and Larkman Nunatak. 85°27′S 172°00′E / 85.450°S 172.000°E / -85.450; 172.000 . A prominent, mainly ice-free massif, about 10 nautical miles (19 km; 12 mi) long and 7 nautical miles (13 km; 8.1 mi) wide, standing at
598-465: The southeast at Plunket Point . Over large areas the Mill Glacier has very smooth ice, free of crevasses. Just upstream of Plunket Point , where it joins the Beardmore, there is an area of smooth and level blue ice over 7 kilometres (4.3 mi) long in a NNW-SSE direction that is suitable for an airfield. The ice thickness seems to be about 650 metres (2,130 ft). The runway faces directly into
624-564: The southeast corner of Otway Massif. Mapped by the USGS from surveys and United States Navy aerial photographs, 1959-63. Named by US-ACAN for David P. Johnston, member of a USARP geological party to the area, 1967-68 season. 85°39′S 174°10′E / 85.650°S 174.167°E / -85.650; 174.167 . A large, isolated mountain, 2,990 metres (9,810 ft) high, standing 10 nautical miles (19 km; 12 mi) southeast of Otway Massif. Discovered by Rear Admiral Byrd on
650-469: The southeast end of the Grosvenor Mountains, 12 nautical miles (22 km; 14 mi) east of Mauger Nunatak. Named by the NZGSAE (1961-62) for A.H. Larkman, Chief Engineer of the Aurora, the vessel which transported the Ross Sea Party of Shackleton's Imperial Trans-Antarctic Expedition (1914-17) from Australia to the Ross Sea. Nunatak A nunatak (from Inuit nunataq ) is the summit or ridge of
676-501: The wind. It appears to be a useful alternative to Mount Howe in an emergency. During the Shackleton Glacier Project, 1995-1996, Lockheed LC-130 aircraft placed fuel caches on the Mill Glacier. 85°32′S 170°15′E / 85.533°S 170.250°E / -85.533; 170.250 . Extensive icefalls near the head of Mill Glacier, between Otway Massif and the south part of Dominion Range. Named by
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