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Castle Rock (Antarctica)

Rock crag in Antarctica

Field	Value
photo	File:Castle Rock - Antarctica.jpg
photo_caption	Castle Rock
elevation_m	415
country	Antarctica	country_type=Continent
region	Ross Dependency
map	Antarctica
coordinates

Castle Rock () is a bold rock crag, 415 m high, standing 3 nmi northeast of Hut Point on the central ridge of Hut Point Peninsula, Ross Island, Antarctica. It was discovered by the British National Antarctic Expedition, 1901–04, under Robert Falcon Scott, who so named it because of its shape. The feature was a landmark for sledging parties returning from journeys to the south.

Geology

Castle Rock is part of the McMurdo Volcanic Group, a large group of Cenozoic alkaline volcanic rocks found from Cape Adare south to the Ross Ice Shelf in the West Antarctic Rift System. It is within the Erebus province of this group, which includes Mount Erebus and the Hut Point Peninsula. It is a flat-topped monolith with steep sides. Its distinct shape if mostly formed by hyaloclastite sequences, and is very similar to subglacial volcanoes found in Iceland and the Antarctic Peninsula. The steep sides are due to the volcano being confined by glacial ice each time it erupted.

Recreational trail

There is a recreational route over a snow and ice field that makes a loop from Scott Base to Castle Rock, starting from Twin Crater and going to Castle Rock via Half Moon Crater. It returns past Sheppard Crater and Kiwi Ski Hill. There are three emergency shelters along the way. The route may be used by hikers, runners or skiers, and is the most demanding in the McMurdo Station area on Ross island. At Castle Rock there is a route to the Castle Rock summit with a fixed line as a handhold.

References

Sources

{{citation|url=https://pubs.usgs.gov/fedgov/70039167/report.pdf |accessdate=2024-01-30 |edition=2 |editor-last=Alberts |title=Geographic Names of the Antarctic |editor-first=Fred G.
{{citation |url=https://adam.antarcticanz.govt.nz/nodes/view/20616 |accessdate=2024-02-04
{{citation |url=https://data.pgc.umn.edu/maps/antarctica/pgc/11/pdf/Ross%20Island%20Trail%20System.pdf |accessdate=2024-02-04

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

nunataks-of-ross-island

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