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Hut Point Peninsula
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Hut Point Peninsula (77°47′S 166°51′E / 77.783°S 166.850°E / -77.783; 166.850) is a long, narrow peninsula from 2 to 3 nautical miles (3.7 to 5.6 km; 2.3 to 3.5 mi) wide and 15 nautical miles (28 km; 17 mi) long, projecting south-west from the slopes of Mount Erebus on Ross Island, Antarctica.[1] McMurdo Station (US) and Scott Base (NZ) are Antarctic research stations located on the Hut Point Peninsula.

Key Information

It is also home to historical sites including the Discovery Hut from Robert Falcon Scott's 1901 expedition, and memorials of various types. Hut Point Peninsula is the most inhabited place on Antarctica since the 1950s and is continuously occupied.

History

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The British National Antarctic Expedition (1901–04) under Robert Falcon Scott built its Discovery Hut on Hut Point, at the southern headland of the peninsula. Members of the British Antarctic Expedition, 1910–13 (BAE), under Scott, wintering on Cape Evans and often using the hut during their journeys, came to refer to the whole peninsula as the Hut Point Peninsula.[1]

Historic sites and monuments

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Edward Wilson's map of Hut Point Peninsula, circa 1910
Ross Island's Mount Erebus looms over McMurdo and Scott lighting up the polar twilight on Hut Point Peninsula (view looking north)

Several features on Hut Point, including the cross memorial for George Vince and the store hut for the Scott expeditions, are protected under the Antarctic Treaty.[2] Both the cross (HSM 19) and the hut (HSM 18) have been designated Historic Sites or Monuments, following proposals by New Zealand and the United Kingdom to the Antarctic Treaty Consultative Meeting.[3] The point is protected as Antarctic Specially Protected Area No.158 largely because of its historic significance as one of the principal sites of early human activity in Antarctica.[4]

Features

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Hut Point Peninsula consists of a series of basaltic scoria cones, craters and domes that were formed in the last 1.34 million years.[5] Other features around the Hut Point Peninsula include Sultans Head Rock, Descent Cliff, Hutton Cliffs, Turtle Rock, Knob Point, Danger Slopes, Arrival Heights, Crater Hill, Hut Point, Cape Armitage, Observation Hill, The Gap and Pram Point.[6]

Craters

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First Crater

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77°50′S 166°39′E / 77.833°S 166.650°E / -77.833; 166.650. A crater on Arrival Heights, located 0.75 nautical miles (1.39 km; 0.86 mi) north of Hut Point. Named by Debenham in 1912 on his local survey of Hut Point Peninsula during the British Antarctic Expedition, 1910-13.[7]

Second Crater

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77°49′S 166°40′E / 77.817°S 166.667°E / -77.817; 166.667. A crater on Arrival Heights, situated 0.6 nautical miles (1.1 km; 0.69 mi) northeast of First Crater. Named by F. Debenham in 1912 on his local survey of Hut Point Peninsula during the British Antarctic Expedition, 1910-13.[8]

Sheppard Crater

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77°48′19″S 166°50′30″E / 77.805347°S 166.841572°E / -77.805347; 166.841572. A distinctive breached crater rising to 200 metres (660 ft) high about 0.8 nautical miles (1.5 km; 0.92 mi) east of Castle Rock. Named in 2000 by New Zealand Geographic Board (NZGB) after Deirdre Jeanette Sheppard, DSIR Antarctic Division/NZAP/Antarctica NZ librarian, 1980-96, who worked one season at Vanda Station.[9]

Half Moon Crater

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77°48′28″S 166°44′50″E / 77.807744°S 166.747093°E / -77.807744; 166.747093. A crater 0.5 nautical miles (0.93 km; 0.58 mi) southwest of Castle Rock. Descriptively named for its shape by Frank Debenham of British Antarctic Expedition (British Antarctic Expedition), 1910-13, who made a plane table survey of the peninsula in 1912.[10]

Twin Crater

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77°50′26″S 166°41′10″E / 77.840604°S 166.686128°E / -77.840604; 166.686128. A crater with twin nested cones that rises behind McMurdo Station and 0.5 nautical miles (0.93 km; 0.58 mi) west of Crater Hill. This crater was named Middle Crater by Frank Debenham of the British Antarctic Expedition (British Antarctic Expedition), 1910-13, apparently for its location in relation to First Crater and Crater Hill, but the name has fallen into disuse. Twin Crater, alluding to the nested cones in the crater, was applied as early as 1971 and the name has become established because of consistent use in current maps and reports.[11]

Northern features

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Map all coordinates using OpenStreetMap Download coordinates as KML
Ross Island. Hut Point in the southwest

Features in the north of the peninsula, from north to south, include

Centipede Nunatak

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77°44′50″S 166°53′32″E / 77.747205°S 166.892322°E / -77.747205; 166.892322. A narrow nunatak that is 0.3 nautical miles (0.56 km; 0.35 mi) long, located 0.8 nautical miles (1.5 km; 0.92 mi) north-northwest of Ford Rock in central Hut Point Peninsula. The name is allusive; snow that cuts across parts of the nunatak gives it a segmented appearance resembling that of a centipede. Named by the Advisory Committee on Antarctic Names (US-ACAN), 2000.[12]

Rodgers Point

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77°46′04″S 166°47′02″E / 77.767734°S 166.783895°E / -77.767734; 166.783895. A point 2.5 nautical miles (4.6 km; 2.9 mi) northeast of Knob Point on the west side of Hut Point Peninsula. Named by New Zealand Geographic Board (NZGB) (2000) after Thelma Rodgers, scientific officer, who was the first woman to winter-over at Scott Base, 1979.[13]

Ford Rock

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77°46′S 166°53′E / 77.767°S 166.883°E / -77.767; 166.883. A prominent rock 1 nautical mile (1.9 km; 1.2 mi) northeast of Cone Hill. Cone Hill and this rock were designated "Cone Hill I" and "Cone Hill II," respectively, by the British Antarctic Expedition under Scott, 1910-13. Cone Hill has been approved for Scott's "Cone Hill I," but a new name suggested by A.J. Heine has been substituted for this prominent rock. M.R.J. Ford, New Zealand surveyor, established a survey beacon network for the McMurdo Ice Shelf Project, 1962-63. A survey beacon was established earlier on this rock by a United States Hydrographic Office survey team, 1955-56.[14]

Cone Hill

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77°47′S 166°51′E / 77.783°S 166.850°E / -77.783; 166.850. A hill 2 nautical miles (3.7 km; 2.3 mi) northeast of Castle Rock. The descriptive name "Cone Hill I" was used by the British Antarctic Expedition under Robert Falcon Scott, 1910-13, but the form Cone Hill has come into general use.[15]

Ackley Point

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77°47′22″S 166°55′13″E / 77.789466°S 166.920391°E / -77.789466; 166.920391. An ice-covered point 1 nautical mile (1.9 km; 1.2 mi) southeast of Cone Hill on the east side of Hut Point Peninsula. Named by the Advisory Committee on Antarctic Names (US-ACAN) in 2000 after Stephen F. Ackley, Snow and Ice Division, U.S. Army Cold Regions Research and Engineering Laboratory (CRREL), Hanover, New Hampshire, a U.S. Antarctic Project (USAP) sea ice specialist who worked in McMurdo Sod and diverse parts of the Southern Ocean for more than 25 years, dating from the 1976-77 austral season.[16]

Central features

[edit]

Features in the center of the peninsula, from north to south, include

Knob Point

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77°48′S 166°40′E / 77.800°S 166.667°E / -77.800; 166.667. A rounded coastal point on the west side of Hut Point Peninsula. The feature lies 1.5 nautical miles (2.8 km; 1.7 mi) west of Castle Rock. The name was adopted by US-ACAN on the recommendation of Gerald L. Kooyman, USARP biologist who studied physiological characteristics related to diving in the Weddell seal in this vicinity, 1963-64 and 1964-65. Kooyman reported that this descriptive name was already in use by other field workers in the area.[17]

Castle Rock

[edit]
Castle Rock
Main article: Castle Rock (Antarctica)

77°48′S 166°46′E / 77.800°S 166.767°E / -77.800; 166.767. Bold rock crag, 415 metres (1,362 ft) high, standing 3 nautical miles (5.6 km; 3.5 mi) northeast of Hut Point on the central ridge of Hut Point Peninsula. Discovered by the British National Antarctic Expedition (BrNAE) (1901-04) under Scott, who so named it because of its shape.[18]

Boulder Cones

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77°48′26″S 166°42′36″E / 77.807266°S 166.710021°E / -77.807266; 166.710021. A descriptive name for cones 0.9 nautical miles (1.7 km; 1.0 mi) southwest of Castle Rock. Named by Frank Debenham of the British Antarctic Expedition, 1910–13 (BrAE), who made a plane table survey of the peninsula in 1912.[19]

Arrival Heights

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Auroral radar installed at Arrival Heights, circa 1959
Main article: Arrival Heights

77°49′S 166°39′E / 77.817°S 166.650°E / -77.817; 166.650. Clifflike heights which extend in a NE--southwest direction along the west side of Hut Point Peninsula, just north of Hut Point. Discovered and named by the BrNAE, 1901-04, under Scott. The name suggests the expedition's arrival at its winter headquarters at nearby Hut Point.[20]

Danger Slopes

[edit]
George Vince's Cross

77°49′S 166°40′E / 77.817°S 166.667°E / -77.817; 166.667. An ice slope just south of Knob Point. The initial slope is very steep and it terminates west in a sheer drop to Erebus Bay. So named by BrNAE (1901-04) because Seaman Vince of BrNAE died here in a blizzard when he slipped and fell into the sea.[21]

Starr Lake

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77°50′S 166°40′E / 77.833°S 166.667°E / -77.833; 166.667. A small meltwater lake which is a source of water for McMurdo Station. The lake is situated in the area of constant snow cover on Hut Point Peninsula, approximately 0.5 nautical miles (0.93 km; 0.58 mi) north of the station and midway between First Crater and Crater Hill. The name Starr Lake came into general use at McMurdo Station for this feature in the early 1970's. It is named after James W. Starr, steelworker, United States Navy, who was closely associated with the development of the lake as a source of station water.[22]

Crater Hill

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77°50′S 166°43′E / 77.833°S 166.717°E / -77.833; 166.717. A hill, 300 metres (980 ft) high, marked by a volcanic crater at its summit, about 1 nautical mile (1.9 km; 1.2 mi) north of Observation Hill in the south part of Hut Point Peninsula. Discovered and named by the BrNAE under Scott, 1901-04.[23]

Polar Bear Point

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77°48′59″S 166°51′06″E / 77.816287°S 166.851715°E / -77.816287; 166.851715. An ice-covered point 1.2 nautical miles (2.2 km; 1.4 mi) southeast of Castle Rock on the east side of Hut Point Peninsula. A breached crater stands 0.7 nautical miles (1.3 km; 0.81 mi) north-northwest, but no rock is exposed on the point which is well defined and elevated at the juncture with McMurdo Ice Shelf. The name is allusive; when viewed from the west, the appearance of the point is suggestive of the head, neck, and fore part of an Arctic polar bear. Named by the Advisory Committee on Antarctic Names (US-ACAN), 2000.[24]

Southern features

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Features in the south of the peninsula, from west to east, include

Black Knob

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77°50′17″S 166°39′49″E / 77.838187°S 166.663478°E / -77.838187; 166.663478. A descriptive name for a rock outcrop 0.2 nautical miles (0.37 km; 0.23 mi) west of Twin Crater/Middle Crater. The name has been used in reports and maps since at least 1971.[25]

Winter Quarters Bay

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Prefabricated hut erected by the National Antarctic Discovery Expedition (1901-1904) adjacent to Winter Quarters Bay, middle right.
Main article: Winter Quarters Bay

77°51′S 166°37′E / 77.850°S 166.617°E / -77.850; 166.617. A small bay immediately east of Hut Point, at the south end of Ross Island. Discovered by the BrNAE, 1901-04, and so named because the expedition ship Discovery was moored in the bay and "frozen-in" during the winter seasons of 1902 and 1903.[26]

Hut Point

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77°51′S 166°38′E / 77.850°S 166.633°E / -77.850; 166.633. A small point lying 1 nautical mile (1.9 km; 1.2 mi) northwest of Cape Armitage, at the south end of Hut Point Peninsula. Discovered and named by the BrNAE (1901-04) under Scott, who established their hut on the point.[1]

Further information: Discovery Hut

Observation Hill

[edit]
Observation Hill as seen from Hut Point
Main article: Observation Hill (McMurdo Station)

77°51′S 166°40′E / 77.850°S 166.667°E / -77.850; 166.667. Conical hill, 230 metres (750 ft) high, surmounting Cape Armitage at the south end of Hut Point Peninsula. Discovered by the BrNAE, 1901-04, under Scott, and so named because it forms an excellent lookout station.[27]

Cape Armitage

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77°51′S 166°40′E / 77.850°S 166.667°E / -77.850; 166.667. Cape forming the south end of Hut Point Peninsula and the southernmost point of Ross Island. Discovered by the BrNAE, 1901-04, under Scott, and named by him for Lieutenant (later Captain) Albert B. Armitage, second in command and navigator on the Discovery.[28]

Annotated view over the Hut Peninsula with McMurdo, also showing Scott Base and the McMurdo Ice Shelf (south is up in this image)

Fortress Rocks

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77°51′S 166°41′E / 77.850°S 166.683°E / -77.850; 166.683. A cluster of low rock summits 0.5 nautical miles (0.93 km; 0.58 mi) north of the summit of Observation Hill on Hut Point Peninsula. A descriptive name given by members of the British Antarctic Expedition, 1910-13, under Scott.[29]

The Gap

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77°51′S 166°43′E / 77.850°S 166.717°E / -77.850; 166.717. A pass between Crater Hill and Observation Hill at the south end of Hut Point Peninsula. Charted and named by the BrNAE, 1901-04, under Scott. BrNAE sledge parties traversed the south end of the peninsula via this low level passage.[30]

Pram Point

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77°51′S 166°45′E / 77.850°S 166.750°E / -77.850; 166.750. Low rounded point on the southeast side of Hut Point Peninsula, about 1.5 nautical miles (2.8 km; 1.7 mi) northeast of Cape Armitage. Discovered by the BrNAE, under Scott, 1901-04, who so named it because it is necessary during the summer months to use a pram in the open water adjacent to the point when traveling between the south end of Hut Point Peninsula and the Ross Ice Shelf.[31]


Region around Hut Point Peninsula

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McMurdo Station (with Scott Base) lies at the tip of Hut Point Peninsula. (south is up)

See also

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References

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Sources

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Public Domain This article incorporates public domain material from websites or documents of the United States Geological Survey.

Revisions and contributorsEdit on WikipediaRead on Wikipedia

Hut Point Peninsula

View on Grokipedia
from Grokipedia
Hut Point Peninsula is a long, narrow, snow-covered peninsula, 24 km (15 mi) in length and 3–5 km (1.9–3.1 mi) in width, projecting southwestward from the southern slopes of Mount Discovery on into , . The peninsula's ice-free areas, including its southern tip known as Hut Point, feature volcanic rock formations and serve as a key geographical marker at the entrance to . Historically, it gained prominence during the when Robert Falcon Scott's British National Antarctic Expedition (1901–1904) constructed at Hut Point in 1902 as a prefabricated base for winter quarters and supply storage, later used by Ernest Shackleton's (1907–1909). In modern times, the peninsula hosts , the ' primary Antarctic research and logistics hub operated by the National Science Foundation since 1956, supporting scientific operations amid the continent's extreme environment. Notable landmarks include Observation Hill, site of a memorial cross erected in 1912 honoring Scott's Terra Nova Expedition, and Vince's Cross, commemorating a fatal accident during the Discovery Expedition.

Geography

Location and Physical Extent

Hut Point Peninsula is a long, narrow, ice-free landform projecting southwestward from the southern slopes of Mount Discovery on the southwest end of into , within the Ross Archipelago of , . Centered at coordinates 77°47′S 166°51′E, it lies adjacent to the and serves as the site for , the principal Antarctic research facility. The peninsula extends approximately 24 kilometers (15 miles) in length and varies in width from 3 to 5 kilometers (2 to 3 miles), forming a relatively low-lying, rocky ridge amid surrounding glacial and environments. Its southern terminus, Hut Point, comprises a small promontory rising about 10 meters above , marking the southernmost point of accessible land on . This configuration results from volcanic activity shaping , with the peninsula's exposure due to minimal ice cover, contrasting with the heavily glaciated higher elevations of the island. The surrounding reaches depths exceeding 500 meters, facilitating annual access to nearby stations during the austral summer.

Topography and Surrounding Environment

The Hut Point Peninsula measures approximately 24 km in length and 3 to 5 km in width, forming a narrow projection extending southwestward from the southern flanks of on into . Its topography is characterized by a central volcanic ridge averaging 143 m in , overlaid with multiple cones and volcanic stumps, including the prominent Crater Hill. The southern end terminates at Hut Point, a low ice-free promontory situated at 77°50'45"S, 166°38'30"E, approximately 500 m west of . The surrounding environment encompasses to the west and south, where seasonal fast ice forms, enabling overland travel by sledge in winter but posing navigational challenges during breakup. Across the sound lies the Royal Society Range on the mainland, while the peninsula connects northward to the higher volcanic terrain of , dominated by at 3,794 m. Adjacent ice features include the McMurdo Ice Shelf along the southwestern margins, and notable nearby landforms such as Observation Hill, located 1.4 km southeast of Hut Point and rising to about 230 m. The area's ice-free volcanic rock supports sparse lichen flora amid predominantly barren, rocky expanses.

Geology

Formation and Volcanic History

The Hut Point Peninsula, a narrow volcanic ridge extending westward from into , formed through Pleistocene alkaline within the McMurdo Volcanic Group. This activity, part of the broader West Antarctic Rift System, involved episodic eruptions of magmas from multiple vents, constructing the peninsula's topography via cinder cones, mounds, and associated lava flows. The reflects mantle-derived melts upwelling beneath the region, with geochemical signatures indicating an intraplate alkaline province rather than subduction-related origins. Radiometric dating places the initiation of significant volcanism on the peninsula at approximately 1.3 million years ago, with the oldest exposed units yielding 40Ar/39Ar ages around 1.34 ± 0.23 Ma. Eruptive episodes continued intermittently, producing basanitic to hawaiitic compositions dominant in the edifice, alongside minor intermediate differentiates like from fractional crystallization. Younger flows and cones date to as recent as 0.44 ± 0.1 Ma, though no historical eruptions are recorded on the peninsula itself, distinguishing it from the adjacent active volcano. Paleomagnetic studies confirm extrusion during periods of normal and reversed polarity, supporting a prolonged, multi-phase history. Key features like Castle Rock illustrate phreatomagmatic influences, where interacted with or to form cones through explosive fragmentation, evidencing subglacial or littoral eruptive conditions during glacial-interglacial cycles. The peninsula's alignment and vent distribution suggest structural control by pre-existing fractures, facilitating ascent in this tectonically active setting. Overall, the volcanic history underscores episodic, low-volume eruptions building a subaerial to emergent amid Antarctica's dynamic ice-sheet interactions.

Rock Composition and Age

The Hut Point Peninsula is composed predominantly of alkaline volcanic rocks, including and as the primary lithologies, with subordinate and minor . These to intermediate compositions reflect derivation from mantle-derived magmas, often featuring and clinopyroxene phenocrysts, and occasionally incorporating diverse xenoliths such as and . The peninsula's surface exposures, including cinder cones and lava flows, exhibit these textures, with dominating the peripheral volcanic centers surrounding . Geochronological data indicate that the peninsula's volcanic rocks formed during the Pleistocene epoch, with K-Ar and 40Ar/39Ar dating yielding ages primarily clustered around 1.2 to 1.3 million years ago for the southern sector and major eruptive features. Individual samples range from approximately 0.44 ± 0.1 Ma to 1.34 ± 0.23 Ma, encompassing a span of roughly 1.2 million years of activity, though some peripheral lavas extend to older limits near 4 Ma. This temporal framework aligns with the broader , where Hut Point represents a younger, peripheral expression of alkaline linked to in the West Antarctic Rift System.

Exploration History

Early Sightings and Mapping

The Hut Point Peninsula, forming the southern extremity of , was first sighted on January 12, 1841, by the British expedition led by Captain aboard and HMS Terror. During their penetration of the , Ross's party observed the volcanic island group, including the prominent peninsula protruding into , though no landings were made and the feature remained unnamed at the time. The expedition charted the general coastline of Ross Island amid pack ice and barriers, marking the initial European visual record of the area but without detailed topographic resolution due to navigational constraints and seasonal ice. Systematic exploration and naming occurred during the British National Antarctic Expedition () of 1901–1904 under Commander . The expedition's ship RSS Discovery arrived in on January 3, 1902, and selected the ice-free promontory at the peninsula's tip—later designated Hut Point—for winter quarters owing to its natural harbor formed by fast ice and volcanic ridges offering shelter from prevailing winds. In February 1902, the team erected , a prefabricated structure measuring approximately 12 by 22 feet, using local volcanic stone for foundations; the site's name derived directly from this hut, reflecting its role as an advance base for sledge journeys onto the . Initial surveys during the overwintering period documented the peninsula's rugged lava flows and craters, providing the first on-site observations, though comprehensive was limited by manpower and equipment. More precise mapping emerged in subsequent efforts, notably during the British Antarctic Expedition (Terra Nova Expedition) of 1910–1913. Edward Wilson produced a detailed sketch map of the circa 1910, delineating key volcanic features and travel routes from Hut Point. Frank Debenham conducted a local survey in 1912, applying geodetic measurements to chart craters and elevations, which informed early understandings of the 's 15-nautical-mile length and 2–3-nautical-mile width. These mappings, grounded in direct fieldwork amid extreme conditions, established baselines for later scientific and logistical use, prioritizing empirical over prior approximate coastal outlines from Ross's .

Heroic Age Bases and Expeditions

The British National Antarctic Expedition (1901–1904), commanded by , constructed the at Hut Point in February 1902 as the primary shore facility on . This prefabricated structure, built from and Scots pine panels measuring 12.2 by 7.3 meters externally, functioned as a storehouse for provisions, a workshop for equipment repairs, and a site for scientific work, including magnetic observations essential to the expedition's goals. With capacity for only about 15 men, the 47 expedition members wintered aboard the ship Discovery, frozen into ice adjacent to the hut, which served as a supplementary base during the prolonged entrapment until relief ships arrived in 1904. Subsequent Heroic Age expeditions repurposed the Discovery Hut for logistical support amid the challenging sea ice dynamics of McMurdo Sound. Ernest Shackleton's British Antarctic Expedition (Nimrod, 1907–1909), though primarily based at Cape Royds 34 kilometers north, utilized the hut for caching supplies and brief occupancy during their southern advances, which reached within 180 kilometers of the South Pole on January 9, 1909. Scott's British Antarctic Expedition (Terra Nova, 1910–1913) cleaned and restocked the structure in 1911 for use as a depot and rendezvous point for man-hauling parties laying supply caches on the Ross Ice Shelf; sea ice prevented full winter access, limiting its role to summer staging despite the main base at Cape Evans. Returning Terra Nova members occupied it briefly on January 20–21, 1913, amid searches for the lost polar party. The hut's final Heroic Age occupation occurred during the Ross Sea Party of Shackleton's (1914–1917), when 10 men, stranded after the support ship Aurora broke free on May 7, 1915, wintered there under extreme hardship, including temperatures dropping to -50°C and inadequate clothing. From Hut Point, they sledged over 4,000 kilometers to establish depots for a transcontinental party that never materialized from the side, sustaining three fatalities from and exposure before relief on January 10, 1917. These uses underscore Hut Point's strategic value as a gateway to the , despite its exposed, wind-swept location precluding it as a primary winter base.

Mid-20th Century Establishment and Use

The established on Hut Point Peninsula during I, with construction beginning on December 18, 1955, by units landing at Hut Point to build facilities on the exposed . A temporary was erected at Hut Point to support operations, including an airstrip on nearby ice for C-124 Globemaster landings starting 1956. The station served as a logistical hub for advancing into the interior, marking the first permanent U.S. presence on the peninsula after earlier 20th-century expeditions. New Zealand followed with Scott Base, opened on January 20, 1957, on Pram Point of Hut Point Peninsula, initially as a support facility for the and (IGY) activities. The base accommodated up to six buildings by the late , enabling year-round occupation and coordination with McMurdo for joint operations. Both stations facilitated IGY research from July 1957 to December 1958, focusing on geophysical observations such as auroral studies, , and , with McMurdo acting as the primary U.S. logistics center for deploying teams across and beyond. This period solidified Hut Point Peninsula's role in sustained science, transitioning from to coordinated international efforts under the Treaty framework emerging in 1959.

Geological Features

Craters and Cones

Hut Point Peninsula comprises a 20-km-long chain of basaltic scoria cones and craters aligned in an en echelon pattern along a NNE-trending lineation, primarily on the western margin, extending southward from the flank of Mount Erebus. These monogenetic vents formed through Strombolian-style eruptions, producing pyroclastic deposits and minor lava flows during the Pleistocene epoch. Potassium-argon dating yields ages from 1.34 to 0.44 million years ago, with some estimates centering around 0.5 Ma, indicating no Holocene activity. Key cones include Crater Hill, the largest and least eroded, reaching elevations over 140 m and featuring well-preserved rims; Castle Rock, a prominent ; Boulder Cones; Black Knob; Breached Cone; and Sulfur Cones, the latter associated with minor fumarolic activity in the past. Twin Crater, another preserved cone, exemplifies the sequence's relatively youthful landforms near the peninsula's central sector. Notable craters encompass First Crater, Second Crater, and Half Moon Crater, often nested within or adjacent to the cones and filled with glacial or pyroclastic debris. Observation Hill, at the southern tip, stands as a phonolitic dome rising to 228 m, contrasting with the dominant basaltic composition of the scoria cones through more evolved, trachytic intrusions and flows. The alignment and composition reflect rift-related volcanism within the Volcanic Province, with and prevailing alongside subordinate . by glacial advance and changes has modified many features, exposing older palagonitized breccias beneath younger .

Northern Sector Landmarks

The northern sector of Hut Point Peninsula encompasses the upper portion of the ridge extending toward proper, characterized by and ridges formed during Pleistocene eruptions. This area features Castle Rock, a striking rock crag rising to 415 meters (1,361 ft) elevation, situated approximately 5.6 km (3 nautical miles) northeast of Hut Point. Composed primarily of , Castle Rock represents a or neck from an ancient eruptive vent, with the surrounding cone largely eroded away over time. Geological analysis indicates subglacial eruption origins, where magma intruded and solidified beneath ice sheets, contributing to the monolith's steep, flat-topped morphology. Associated landforms include linear arrays of basaltic ridges and minor domes, remnants of fissure-fed dated between 1.34 and 0.44 million years ago via potassium-argon methods. These features exhibit evidence of interaction with the ancestral , including deposits from sub-ice eruptions. The sector's terrain rises gradually northward, transitioning into broader volcanics, with escarpments along the western flank overlooking shaped by differential erosion of lava flows and pyroclastics.

Central Sector Landmarks

The central sector of Hut Point Peninsula encompasses a series of volcanic ridges, cones, and heights extending northward from the southern tip, formed by eruptions from the hotspot track. These features include prominent landmarks such as Arrival Heights, Crater Hill, Castle Rock, and Boulder Cones, which exhibit the peninsula's volcanic history dominated by and lavas. Arrival Heights consists of clifflike heights extending in a northeast-southwest direction along the western side of the peninsula, located near the southeastern end as a small range of low hills. Designated as (ASPA) 122, the site is valued for its natural electromagnetic quietness, supporting long-term atmospheric research including studies of ionospheric phenomena and VLF radio emissions. The area lies approximately 1.5 km north of and features craters like First Crater, surveyed during the British Antarctic Expedition (1910-1913). Crater Hill rises to 335 m elevation, marked by a at its summit, situated about 1 mile north of Observation Hill in the southern-central part of the peninsula. As the largest of the peninsula's volcanic cones and stumps along a ridge averaging 143 m high, it exemplifies the alignment of eruptive centers striking toward Mount Discovery. The hill's formation ties to the peninsula's volcanic sequence, with no recorded eruptions but evidence of activity within the last 1.2 million years. Castle Rock stands as a bold, steep-sided crag reaching 413-430 m high, positioned about 3.5 miles northeast of Hut Point on the central ridge. It represents a plug or pipe of an ancient volcanic vent from which surrounding material has eroded, leaving a flat-topped amid basanitic terrains rich in xenoliths. Discovered during the British National Antarctic Expedition (1901-1904), the feature highlights differential erosion in the region's igneous landscape. Boulder Cones refer to a group of volcanic cones located 0.9 miles southwest of Castle Rock, named descriptively by Frank Debenham during the British Antarctic Expedition (1910-1913) for their plane table survey observations. These cones align with the peninsula's NNE-striking lineation of volcanic centers, contributing to the area's diverse ejecta and lava deposits. Danger Slopes denote hazardous terrain slopes adjacent to Arrival Heights and Castle Rock, mapped as part of the peninsula's rugged volcanic near . The name reflects the steep, icy inclines posing risks for traversal, integrated into local navigation charts for safety. Starr Lake, associated with Crater Hill, appears as a minor water body in the central volcanic terrain, though detailed geological records are sparse. Other minor points like Knob Point and Point mark elevated knobs along the central ridge, underscoring the peninsula's punctuated volcanic morphology.

Southern Sector Landmarks

The southern sector of Hut Point Peninsula encompasses the promontory known as Hut Point and the adjacent Observation Hill, both central to early British Antarctic exploration efforts. Hut Point, a small ice-free promontory protruding southwest into , served as the winter base for Robert Falcon Scott's British National Antarctic (Discovery) Expedition from 1901 to 1904. , constructed in February 1902 from local and wood brought from , measures approximately 11 by 7 meters and provided shelter for up to 12 men during harsh winters, though conditions inside were rudimentary with temperatures often dropping below -40°C. Adjacent to Discovery Hut stands Vince's Cross (Historic Site and Monument No. 19), a wooden erected in 1904 by the to honor George T. Vince, the first expedition member to perish in the region. On March 11, 1902, Vince slipped on ice during a while retrieving stores, falling over a cliff into the sound; his body was never recovered. The oak cross, originally placed near the accident site but relocated for preservation, overlooks the sound and symbolizes the perils of early polar travel. Observation Hill, a 190-meter rising immediately north of Hut Point, offers panoramic views of , the sound, and Ross Island's volcanic landscape. In January 1913, survivors of Scott's British Antarctic ( erected a memorial cross (Historic Site and Monument No. 20) at the summit to commemorate the deaths of Scott, Edward Wilson, , Henry Bowers, and , who perished during their return from the in 1912. The hill's strategic elevation made it ideal for meteorological and navigational observations during expeditions, and it remains a protected site under the , accessible via a marked trail from . These landmarks, preserved by the New Zealand Antarctic Heritage Trust and international agreements, highlight the human endurance and logistical challenges faced in the .

Scientific Significance

Research Facilities and Observations

, the largest Antarctic research facility operated by the , is situated on the southern tip of Hut Point Peninsula and serves as the primary logistical hub for U.S. scientific operations across the continent. Established in 1955 during the , it supports diverse research fields including , earth sciences, and , with over 1,000 personnel during the austral summer. Nearby , New Zealand's permanent station founded in 1957 on Pram Point of the peninsula, accommodates around 85 people in summer and focuses on terrestrial and , atmospheric science, and . Specialized observatories on the peninsula include the Arrival Heights Laboratory within 122, which conducts long-term atmospheric monitoring such as spectroradiometry and measurements of middle atmosphere dynamics. Operational since the 1950s, it provides data on , solar influences, and very low frequency propagation, benefiting from the region's low . Historical observations trace to Discovery Hut, erected in February 1902 by Robert Falcon Scott's British National Antarctic Expedition at Hut Point's tip for meteorological, magnetic, and tidal recordings during winter quarters when sea ice confined the expedition ship. These early efforts yielded foundational data on regional and , despite harsh conditions limiting sustained occupancy. Contemporary studies leverage the peninsula's proximity to dynamic features like the McMurdo Ice Shelf transition zone, where and have documented thinning and retreat rates exceeding 1 meter per year since 2010, informing models of ice-ocean interactions and sea-level contributions. Glaciological surveys of Observation Hill reveal evidence of past advances by the McMurdo Ice Shelf lobe, with dating indicating exposure ages up to 50,000 years for summit erratics, constraining local timelines.

Protected Areas and Conservation

ASPA 122 encompasses Arrival Heights, a low hill range at the southeastern end of Hut Point Peninsula, designated in 1985 to protect a long-term scientific monitoring site for atmospheric physics, including auroral and ionospheric observations conducted since 1957 by New Zealand's National Institute of Water and Atmospheric Research. Access is restricted to permit holders to minimize interference with sensitive instrumentation and preserve baseline . ASPA 158 covers Hut Point itself, a small ice-free approximately 500 meters west of , established in 2000 to conserve the historic —erected by Robert Falcon Scott's British National Expedition in February 1902 from prefabricated and Scots pine panels—as well as surrounding relics, geological features, and microbial communities. The area falls within Environmental Domain S (McMurdo South ) under the Treaty's domain analysis, with entry permitted only via approved protocols to prevent contamination and structural damage from station-related activities. Conservation management emphasizes amid anthropogenic pressures, with the Antarctic Heritage Trust overseeing biennial interventions; the 2023/24 season addressed exterior stabilization and artifact cataloging at to counter freeze-thaw degradation and bio-deterioration. These efforts align with protocols, prioritizing non-invasive techniques to retain evidential value for polar history while mitigating risks from nearby human operations, such as waste and foot traffic. No large-scale wildlife protections apply specifically to the peninsula, though incidental and habitats receive indirect safeguarding through broader guidelines.

Contemporary Developments

Infrastructure and Human Presence

constitutes the principal infrastructure on Hut Point Peninsula, serving as the United States Antarctic Program's central and hub since its establishment in 1955. Operated by the , the station spans volcanic terrain and supports up to 1,100 personnel during the austral summer months, with a winter-over crew typically numbering around 150 to 200 individuals focused on maintenance and limited science operations. Key facilities include the Albert P. Crary Science and Engineering Center for advanced research instrumentation, a for medical care, power generation systems, and over 300 for intra-station and regional transport. The station maintains a road network facilitating access to adjacent ice runways such as for ski-equipped aircraft and the Transition Zone road linking to the McMurdo for heavy . Recreational and support amenities, including a and communications , enable sustained human operations in the extreme environment. Human presence on the peninsula remains seasonal and operationally driven, with continuous occupation since 1955 marking it as Antarctica's most enduringly inhabited locale. Historical elements, such as the preserved Discovery Hut erected in 1902 during Robert Falcon Scott's British National Antarctic Expedition, coexist with modern developments but are designated for conservation rather than active use. Access to these sites is restricted to protect artifacts and ensure safety amid variable sea ice conditions.

Ice Shelf Dynamics and Monitoring

The McMurdo Ice Shelf, a localized extension of the , abuts the eastern margin of Hut Point Peninsula, forming a critical transition zone where grounded glacial ice from interacts with floating shelf ice. This zone experiences dynamic processes including tidal flexing, basal driven by currents, and surface during austral summers, with recent observations indicating accelerated thinning and terminus retreat. Between 2011 and 2015, surface elevation changes reached up to 3–4 meters of thinning at the shelf terminus, accompanied by a retreat of approximately 1 kilometer, as derived from differenced digital elevation models corrected for and atmospheric effects. These changes pose risks to logistical infrastructure, particularly the Transition Zone road linking research stations on Hut Point Peninsula to the for vehicle traversal and supply routes. and GPS surveys conducted in 2015–2016 quantified ice volume flux across potential alternative routes at 204 ± 24 cubic meters per year, highlighting the zone's vulnerability as a for operations supporting U.S. and programs. Further retreat could propagate instability to the broader , potentially accelerating distant ice streams through teleconnected grounding line migration. Monitoring efforts employ a combination of and instruments to track these dynamics. Satellite-derived velocity fields from datasets like ITS_LIVE and GoLIVE, supplemented by Landsat feature tracking, reveal ice speeds up to 225 meters per year near the peninsula's glaciers, with seasonal accelerations in summer. Autonomous phase-sensitive radio-echo sounders (ApRES) deployed around provide hourly ice thickness measurements via satellite telemetry, recording basal melt rates of approximately 2.8 meters per year near the ice front, attributed to warm surface waters and platelet ice formation. Ongoing assessments, including surveys of sub-ice platelet layers, inform adaptations such as road rerouting evaluations, though alternatives like the TZ Hillside remain unsuitable due to persistent flux and instability.

References

  1. https://www.mindat.org/loc-108519.html
  2. https://www.ats.aq/devAS/Ats/Guideline/b6b58c2c-ea44-4c1e-9911-cddc4e156959
  3. https://nzaht.org/conserve/explorer-bases/scotts-hut-hut-point/
  4. https://www.nsf.gov/geo/opp/ail/mcmurdo-station
  5. https://rosetta.esr.org/?p=757
  6. https://mapcarta.com/25616376
  7. https://www.gruan.org/network/sites/ross-island
  8. https://adam.antarcticanz.govt.nz/nodes/view/20959
  9. https://pubs.geoscienceworld.org/gsa/geosphere/article/8/6/1342/132608/Early-Miocene-volcanic-activity-and
  10. https://www.sciencedirect.com/science/article/abs/pii/S0012821X18303327
  11. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2003GC000656
  12. https://nipr.repo.nii.ac.jp/record/2532/files/KJ00002368069.pdf
  13. https://ir.canterbury.ac.nz/server/api/core/bitstreams/c2763c09-fed6-46a8-b8fb-ff0a96dacdfa/content
  14. https://pubs.geoscienceworld.org/gsl/books/edited-volume/2349/chapter/132273663/Chapter-1-3-Antarctic-volcanism-petrology-and
  15. https://caslabs.case.edu/ansmet/2017/12/07/musings-on-the-geology-of-the-hut-point-peninsula/
  16. https://nipr.repo.nii.ac.jp/record/1002/files/KJ00000011548.pdf
  17. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/AR033p0427
  18. https://www.secretatlas.com/handbook/antarctica/ross-island
  19. https://www.coolantarctica.com/Travel/antarctica-huts-historic.php
  20. https://data.aad.gov.au/aadc/gaz/display_name.cfm?gaz_id=125113
  21. https://www.coolantarctica.com/schools/Antarctica-maps-ross-island.php
  22. https://nzaht.org/conserve/explorer-bases/scotts-hut-hut-point/other-expeditions-to-hut-point/
  23. https://www.history.navy.mil/content/history/museums/seabee/explore/online-reading-room/historic-topics0/Antarctica.html
  24. https://www.southpolestation.com/oaes/df1operationsummary.html
  25. https://www.southpolestation.com/news/mcmurdohistoryATCM34.pdf
  26. https://nzhistory.govt.nz/page/scott-base-opened-antarctica
  27. https://www.scottbaseredevelopment.govt.nz/our-scott-base
  28. https://jasmax.com/projects/scott-base-antarctica
  29. https://www.nsf.gov/science-matters/celebrating-65th-anniversary-international
  30. https://volcano.si.edu/volcano.cfm?vn=390814
  31. https://www.nzgs.org/libraries/geotechnical-investigation-for-the-scott-base-redevelopment-project/
  32. https://doi.org/10.1007/s00445-009-0319-1
  33. https://www.tandfonline.com/doi/pdf/10.1080/00288306.1971.10421946
  34. https://mapcarta.com/N7949876093
  35. https://adam.antarcticanz.govt.nz/nodes/view/20616
  36. https://www.ats.aq/devph/en/apa-database/27
  37. https://adam.antarcticanz.govt.nz/nodes/view/20391
  38. https://adam.antarcticanz.govt.nz/nodes/view/20692
  39. https://ir.canterbury.ac.nz/items/930c24f2-8576-4210-befc-ee0edacd45e9
  40. https://adam.antarcticanz.govt.nz/nodes/view/18705
  41. https://mapcarta.com/N7666496153
  42. https://www.ats.aq/devph/en/apa-database/98
  43. https://www.ats.aq/devph/en/apa-database/99
  44. https://www.usap.gov/videoclipsandmaps/mcmwebcam.cfm
  45. https://www.antarcticanz.govt.nz/scott-base
  46. https://gml.noaa.gov/grad/antuv/McMurdo.jsp
  47. https://ndacc.larc.nasa.gov/stations/arrival-heights-antarctica
  48. https://www.sciencedirect.com/science/article/abs/pii/S0165232X22001343
  49. https://www.cambridge.org/core/journals/journal-of-glaciology/article/glaciation-of-observation-hill-hut-point-peninsula-ross-island-antarctica/F3D96B9000B0C51D2CF45FFAE2EF6297
  50. https://www.law.cornell.edu/cfr/text/45/670.29
  51. https://www.ats.aq/devph/en/apa-database/62
  52. https://www.env.go.jp/nature/nankyoku/kankyohogo/database/jyouyaku/aspa/aspa_pdf_en/Measure13_ASPA158.pdf
  53. https://nzaht.org/category/conserve/scotts-hut-hut-point/
  54. https://nsf-gov-resources.nsf.gov/files/USAP-McMurdoStation-PrintablePDF-FINAL-SEPT2023.pdf
  55. https://www.usap.gov/USAPgov/travelAndDeployment/documents/ParticipantGuide-Chapter7.pdf
  56. https://www.nsf.gov/geo/opp/ail/usap-facilities
  57. https://www.sciencedirect.com/science/article/pii/S0165232X22001343
  58. https://digitalcommons.library.umaine.edu/etd/3458/
  59. https://www.antarcticscienceplatform.org.nz/updates/monitoring-melting-of-the-ross-ice-shelf-using-radar
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