Crater Hill as seen from a plane departing Auckland Airport

Crater Hill is one of the volcanoes of the Auckland volcanic field, in New Zealand. It consists of an explosion crater about 600 metres (2,000 ft) wide, partly filled with water. The hill, alongside Māngere Lagoon, Waitomokia, Kohuora, Pukaki Lagoon and Robertson Hill, is one of the volcanic features collectively referred to as Nga Tapuwae a Mataoho ("The Sacred Footprints of Mataoho"), referring to the deity in Tāmaki Māori myths who was involved in their creation.[1][2]

Late in the eruption sequence lava welled up inside the explosion crater creating a lava lake. This lake began cooling on the surface and around the edge, creating a solid basalt crust. When the molten lava withdrew back down the volcano's throat, the crust surface collapsed, creating the island in the middle of the present lake, and some of the solid basalt was left around the inside walls of the crater marking the former level of the lava lake. Two lava caves – Selfs and Underground Press Lava Caves – exist beneath the remnant crust on the south side of the crater. Quarrying has removed the small scoria cone in the crater and some of the tuff ring on the northeast side. The Southwestern Motorway was cut through the northeast crater rim and a small explosion crater.

## References[edit]

1. ^ "The History of Our Marae". Makaurau Marae. Retrieved 1 September 2021.
2. ^ Graham, George (1979). "George Graham's Maori Place Names of Auckland". Records of the Auckland Institute and Museum. 16: 11–39.

* 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.
* Volcanoes of Auckland: A Field Guide. Hayward, B.W.; Auckland University Press, 2019, 335 pp. ISBN 0-582-71784-1.

Coordinates: 36°59′12″S 174°49′38″E / 36.986546°S 174.827135°E / -36.986546; 174.827135

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Auckland volcanic field

Central Auckland|

* Pukekawa Volcano (10)
* Grafton Volcano (50)
* Albert Park Volcano (9)
* Te Pou Hawaiki (12)
* Maungawhau / Mount Eden (11)
* Ōhinerau / Mount Hobson (18)
* Mount Saint John (17)
* Maungakiekie / One Tree Hill (16)
* Te Tātua a Riukiuta (15)
* Ōwairaka / Mount Albert (13)
* Te Hopua a Rangi (27)
* Mount Smart (26)
* Ōrākei Basin (20)
* Puketāpapa (14)
* Little Rangitoto (19)

East Auckland|

* Maungarei (24)
* Purchas Hill (23)
* Whakamuhu / Glover Park (21)
* Taylors Hill (22)
* Panmure Basin (25)
* Pigeon Mountain (36)
* Hampton Park (32)
* Ōtara Hill (33)
* Green Hill (34)
* Styaks Swamp (35)
* Pukewairiki (31)
* McLennan Hills (29)
* Mount Richmond (28)
* Robertson Hill (30)

South Auckland|

* Ash Hill (49)
* Boggust Park Crater (51)
* Cemetery Crater (52)
* Crater Hill (45)
* Kohuora (46)
* Māngere Lagoon (38)
* Matukutūreia (47)
* Matukutūruru (48)
* Maungataketake (43)
* Waitomokia (40)
* Ōtuataua (42)
* Puhinui Craters (53)
* Pukeiti (41)
* Puketutu Island (39)
* Māngere Mountain (37)
* Pukaki Lagoon (44)

Waitematā Harbour
and North Shore|

* Maungauika (6)
* Motukorea (8)
* Pupuke Moana / Pupuke Volcano (1)
* Rangitoto (7)
* Mount Cambria (5)
* Mount Victoria (4)
* Tank Farm (2)
* Onepoto (3)

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