Quarried remnant of Purchas Hill, with Mount Wellington in the background.
Purchas Hill (also Te Tauoma) is one of the volcanoes in the Auckland volcanic field. It was a twin-cratered scoria cone around 50 m high, located north of Mount Wellington, before it was quarried away. The scoria cone sat in the middle of its large explosion crater with surrounding tuff ring. It was erupted about 10,000 yrs ago, shortly before the eruption of its larger neighbour, Mt Wellington. Hochstetter named it after the Reverend Arthur Guyon Purchas (1821-1906), in gratitude for his help with his geological work on the Field.
City of Volcanoes: A geology of Auckland - Searle, Ernest J.; revised by Mayhill, R.D.; Longman Paul, 1981. First published 1964. ISBN 0-582-71784-1.
Volcanoes of Auckland: The Essential Guide. Hayward, B.W., Murdoch, G., Maitland, G.; Auckland University Press, 2011.
^I. Lawlor (2009). Endnotes, An assessment of heritage resources located within the proposed Otuataua Stonefields Historic Reserve Visitor Centre development ‘footprint’, and measures to avoid, remedy and mitigate effects, Otuataua Stonefields Historic Reserve Heritage Assessment Report.