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Story: Northland region

Volcanic plug

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Volcanic plug

Many of Northland’s ranges are made up of volcanic rocks, and there are some spectacular remnants of old volcanoes. Tokatoka peak near Dargaville is a volcanic plug, formed when lava solidified in the pipe of an extinct volcano. The cone has worn away, leaving the plug behind.

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Te Ara – The Encyclopedia of New Zealand

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How to cite this page

Claudia Orange, Northland region – Geography, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/7514/volcanic-plug (accessed 24 June 2026).

Story by Claudia Orange, published 2 March 2009, updated 1 May 2015.