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Big Ben is a volcanic massif that dominates the geography of Heard Island. It is a composite cone with a diameter of approximately 25 kilometres. Its highest peak is Mawson Peak, one of only two active volcanoes in Australian territory which is 2,745 m above sea level. Much of it is covered by ice, including 14 major glaciers which descend from Big Ben to the sea.

Big Ben is not the highest mountain in Australia.

A smaller volcanic headland, the Laurens Peninsula, extends approximately 10 km to the northwest, created by a separate volcano, Mount Dixon; its highest point is Anzac Peak, at 715 m.

See also

• List of volcanoes in Australia

References

• LeMasurier, W. E. (1990). Volcanoes of the Antarctic Plate and Southern Oceans. American Geophysical Union. pp. 512 pp. ISBN 0-87590-172-7. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

External links

• Location and history of Heard Island

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53°06′30″S 73°31′30″E / 53.10833°S 73.52500°E / -53.10833; 73.52500

• Subantarctic island geography stubs
• Active volcanoes
• Complex volcanoes
• Volcanoes of Australia
• Volcanoes of the Southern Ocean
• Heard Island and McDonald Islands