It erupted approximately 19,600 years ago[1] and formed an explosion crater around 200 metres (660 ft) wide with a surrounding tuff ring. It is located north of Green Hill.
A lava flow from the volcano forms the southern boundary of the Pakuranga Creek, around Burswood Reserve.[2]
During the early colonial era, the volcano was a park of John Styak's farm.[2] The crater once contained a swamp but is now covered by industrial development.
^Hopkins, Jenni L.; Smid, Elaine R.; Eccles, Jennifer D.; Hayes, Josh L.; Hayward, Bruce W.; McGee, Lucy E.; van Wijk, Kasper; Wilson, Thomas M.; Cronin, Shane J.; Leonard, Graham S.; Lindsay, Jan M.; Németh, Karoly; Smith, Ian E. M. (3 July 2021). "Auckland Volcanic Field magmatism, volcanism, and hazard: a review". New Zealand Journal of Geology and Geophysics. 64 (2–3): 213–234. doi:10.1080/00288306.2020.1736102. hdl:2292/51323.
^ abLa Roche, Alan (2011). Grey's Folly: A History of Howick, Pakuranga, Bucklands-Eastern Beaches, East Tamaki, Whitford, Beachlands and Maraetai. Auckland: Tui Vale Productions. p. 322. ISBN978-0-473-18547-3. OCLC1135039710. WikidataQ118286377.
