Mount Saint John, New Zealand
Encyclopedia
Mount Saint John is one of the volcanic scoria cones in the Auckland Volcanic Field
Auckland Volcanic Field
The Auckland volcanic field is a monogenetic volcanic field in the North Island of New Zealand. Basaltic in nature, it underlies much of the metropolitan area of Auckland....

. It has a peak 126 metres above sea level and a crater around 150 m wide. It was the site of a
Pa (Maori)
The word pā can refer to any Māori village or settlement, but in traditional use it referred to hillforts fortified with palisades and defensive terraces and also to fortified villages. They first came into being about 1450. They are located mainly in the North Island north of lake Taupo...

, and has retained Māori earthworks from that era such as kumara pits and terracing. The age of Mt St John is currently unknown but is older than 28,500 yrs old as the scoria cone is mantled in ash from Three Kings Volcano. Mt St John is now known to be the source of the long lava flow that flows west and out into the Waitemata Harbour as Meola Reef. This flowed down an old stream valley before Mt Eden had erupted.
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