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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.
Te whakamahi i tēnei tūemi
Te Ara – The Encyclopedia of New Zealand
by Shirley Williams
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