Port Hills
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The Port Hills are a range of hills in
Canterbury Region Canterbury ( mi, Waitaha) is a region of New Zealand, located in the central-eastern South Island. The region covers an area of , making it the largest region in the country by area. It is home to a population of The region in its current f ...
, so named because they lie between the city of
Christchurch Christchurch ( ; mi, Ōtautahi) is the largest city in the South Island of New Zealand and the seat of the Canterbury Region. Christchurch lies on the South Island's east coast, just north of Banks Peninsula on Pegasus Bay. The Avon River / ...
and its port at Lyttelton. They are an eroded remnant of the Lyttelton volcano, which erupted millions of years ago. The hills start at Godley Head, run approximately east–west along the northern side of Lyttelton Harbour, and continue running to the south, dividing the city from the harbour. The range terminates near Gebbies Pass above the head of the harbour. The range includes a number of summits between 300 and 500 metres above sea level. The range is of significant geological, environmental and scenic importance.


History

The volcano is one of two from which Banks Peninsula was originally formed 12 million years ago. The area was first populated by
Māori Māori or Maori can refer to: Relating to the Māori people * Māori people of New Zealand, or members of that group * Māori language, the language of the Māori people of New Zealand * Māori culture * Cook Islanders, the Māori people of the C ...
during the 14th century. During early European settlement some 500 years later the Port Hills presented a challenging barrier between the harbour and the planned settlement of Christchurch, their steepness and ruggedness making access extremely difficult. For many years the majority of settlers used the precipitous Bridle Path to transport themselves and their belongings to the plains on the other side. Today the
Lyttelton road tunnel The Lyttelton road tunnel runs through the Port Hills to connect the New Zealand city of Christchurch and its seaport, Lyttelton, New Zealand, Lyttelton. It opened in 1964 and carries just over 10,000 vehicles per day as part of New Zealan ...
and a separate rail tunnel connect the port and the city suburbs, and three road routes crossing the range – via Evans, Dyers and Gebbies passes – are connected by the Summit Road. In February 2017,
bush fires A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identif ...
in the Port Hills burned for days, destroying over 2000 Ha of bush and several homes.


Geography and conservation

The Port Hills are a prominent feature of the central Canterbury landscape, being visible for many kilometres from the north and west. The crest of the Port Hills varies somewhat in height, being lowest at the eastern end. Two road passes traverse the Port Hills from Christchurch. Dyers Pass (elevation c. 330 m), almost due south of central Christchurch is the more prominent of the two passes. Evans Pass (elevation c. 200 m), which is near the eastern end of the Port Hills, normally connects Sumner and Lyttelton but was closed since the
2011 Christchurch earthquake A major earthquake occurred in Christchurch on Tuesday 22 February 2011 at 12:51 p.m. local time (23:51 UTC, 21 February). The () earthquake struck the entire of the Canterbury region in the South Island, centred south-east ...
caused significant damage to Sumner Road on the Lyttelton side of the pass until reopening in 2019. Between Evans Pass and Dyers Pass are several significant summits, including
Sugarloaf A sugarloaf was the usual form in which refined sugar was produced and sold until the late 19th century, when granulated and cube sugars were introduced. A tall cone with a rounded top was the end product of a process in which dark molasses, a r ...
(494 m), recognisable by the television transmission tower on its summit;
Mount Cavendish Mount Cavendish is located in the Port Hills, with views over Christchurch, New Zealand and Lyttelton. It is part of the crater wall of the extinct volcano that formed Lyttelton Harbour. The Mount Cavendish Reserve displays some of the best exam ...
(448 m); and
Tauhinukorokio / Mount Pleasant / Mount Pleasant ( mi, Tauhinu Korokio), also known just as either Mount Pleasant or Tauhinukorokio individually, is the highest elevation in the eastern Port Hills in Christchurch, New Zealand. It once held a Māori pā, but there was little l ...
(499 m), the highest peak in the northern arc of the Port Hills. West of Dyers Pass, the Port Hills curve away southward and become even higher, rising to 573 m at Coopers Knob. From Coopers Knob the crater rim descends to Gebbies Pass (elevation c. 160 m). The hills south and east of Gebbies Pass are regarded as part of Banks Peninsula proper rather than the Port Hills. Several suburbs of Christchurch extend onto the northern slopes of the Port Hills, including Cashmere, Mt Pleasant,
Heathcote Valley Heathcote Valley is a suburb of Christchurch, New Zealand. It is named after Sir William Heathcote, who was secretary of the Canterbury Association. Location Nestled at the foot of the steep volcanic crags that form the northern edge of the hil ...
and Sumner. Other parts of the hills are used for farming and forestry, as well as a significant number of scenic reserves created for recreational and conservation purposes, following an initiative by Christchurch councillor
Harry Ell Henry George Ell (probably 24 September 1862 – 27 June 1934), commonly known as Harry Ell, was a Christchurch City councillor and a New Zealand Member of Parliament. He is famous for his conservation work around Christchurch's Port Hills, his ...
at the turn of the 20th century. In 1948 the Summit Road Scenic Society was formed to continue development and maintenance of the reserves. The hills are an important recreation area for Christchurch residents, with several public parks and reserves, including tracks for mountain biking and walking. A
gondola lift A gondola lift is a means of cable transport and type of aerial lift which is supported and propelled by cables from above. It consists of a loop of steel wire rope that is strung between two stations, sometimes over intermediate sup ...
to the top of Mount Cavendish was opened in 1992, providing convenient access to the summit and a major tourist attraction for the Canterbury area. The
Christchurch Adventure Park Christchurch Adventure Park is an adventure park in the Port Hills of Christchurch, New Zealand. Built by the Canadian company Select Evolution, it had its opening function on 16 December 2016. The 1500 holders of special passes could ride from ...
was opened in 2016 which provides mountain biking opportunities on the slopes of Worsleys Hill. Road cycling is also very popular on the Port Hills with "short bays" and "long bays" being two of the most popular longer routes.


Demographics

The statistical area of Port Hills covers . It had an estimated population of as of with a population density of people per km2. Port Hills had a population of 72 at the
2018 New Zealand census Eighteen or 18 may refer to: * 18 (number), the natural number following 17 and preceding 19 * one of the years 18 BC, AD 18, 1918, 2018 Film, television and entertainment * ''18'' (film), a 1993 Taiwanese experimental film based on the sho ...
, a decrease of 18 people (-20.0%) since the 2013 census, and a decrease of 12 people (-14.3%) since the
2006 census 6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics Six is the smallest positive integer which is neither a square number nor a prime number; it is the second small ...
. There were 30 households. There were 39 males and 33 females, giving a sex ratio of 1.18 males per female. The median age was 47.5 years (compared with 37.4 years nationally), with 15 people (20.8%) aged under 15 years, 9 (12.5%) aged 15 to 29, 45 (62.5%) aged 30 to 64, and 6 (8.3%) aged 65 or older. Ethnicities were 95.8% European/Pākehā, 8.3% Asian, and 4.2% other ethnicities (totals add to more than 100% since people could identify with multiple ethnicities). The proportion of people born overseas was 20.8%, compared with 27.1% nationally. Although some people objected to giving their religion, 58.3% had no religion, 20.8% were Christian, 4.2% were Hindu, 4.2% were Buddhist and 8.3% had other religions. Of those at least 15 years old, 24 (42.1%) people had a bachelor or higher degree, and 3 (5.3%) people had no formal qualifications. The median income was $50,300, compared with $31,800 nationally. The employment status of those at least 15 was that 30 (52.6%) people were employed full-time, 9 (15.8%) were part-time, and 3 (5.3%) were unemployed.


Flora and fauna

Despite the heavy
deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated d ...
and clearance of native
bush Bush commonly refers to: * Shrub, a small or medium woody plant Bush, Bushes, or the bush may also refer to: People * Bush (surname), including any of several people with that name **Bush family, a prominent American family that includes: *** ...
that took place during early settlement, a diverse range of wildlife and plant life populates the Port Hills. Native birds such as the bellbird (''korimako'' or ''koparara'')
fantail Fantails are small insectivorous songbirds of the genus ''Rhipidura'' in the family Rhipiduridae, native to Australasia, Southeast Asia and the Indian subcontinent. Most of the species are about long, specialist aerial feeders, and named as " ...
,
silvereye The silvereye or wax-eye (''Zosterops lateralis'') is a very small omnivorous passerine bird of the south-west Pacific. In Australia and New Zealand its common name is sometimes white-eye, but this name is more commonly used to refer to all membe ...
,
grey warbler The grey warbler (''Gerygone igata''), also known by its Māori name or outside New Zealand as the grey gerygone, is an insectivorous bird in the family Acanthizidae endemic to New Zealand. Its natural habitat is temperate forest A for ...
and shining cuckoo are commonly found in the remaining bush. While the wood pigeon often seen in the area is a native to New Zealand others, such as the common blackbird,
common chaffinch The common chaffinch or simply the chaffinch (''Fringilla coelebs'') is a common and widespread small passerine bird in the finch family. The male is brightly coloured with a blue-grey cap and rust-red underparts. The female is more subdued in ...
and song thrush are introduced and very populous species. As well as a great many insect species,
gecko Geckos are small, mostly carnivorous lizards that have a wide distribution, found on every continent except Antarctica. Belonging to the infraorder Gekkota, geckos are found in warm climates throughout the world. They range from . Geckos ar ...
and skink are commonly found. Indigenous plant species such as Banks Peninsula hebe inhabit rock crevices along with rare
fern A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except t ...
s. The more exposed hillsides are covered with silver tussock and other native grasses, unusually so for an area so close to urban development. The remaining
podocarp Podocarpaceae is a large family of mainly Southern Hemisphere conifers, known in English as podocarps, comprising about 156 species of evergreen trees and shrubs.James E. Eckenwalder. 2009. ''Conifers of the World''. Portland, Oregon: Timber Pr ...
forest contains 500- to 600-year-old
mataī ''Prumnopitys taxifolia'', the mataī ( mi, mataī) or black pine, is an endemic New Zealand coniferous tree that grows on the North Island and South Island. It also occurs on Stewart Island/Rakiura (47 °S) but is uncommon there. It grows up ...
,
tōtara ''Podocarpus totara'' (; from the Maori-language ; the spelling "totara" is also common in English) is a species of podocarp tree endemic to New Zealand. It grows throughout the North Island and northeastern South Island in lowland, montane a ...
and
kahikatea ''Dacrycarpus dacrydioides'', commonly known as kahikatea (from Māori) and white pine, is a coniferous tree endemic to New Zealand. A podocarp, it is New Zealand's tallest tree, gaining heights of 60 m and a life span of 600 years. It was fi ...
trees as well as fruit and flowering species such as
kōwhai Kōwhai ( or ) are small woody legume trees within the genus ''Sophora'' in the family Fabaceae that are native to New Zealand. There are eight species, with ''Sophora microphylla'' and '' S. tetraptera'' being the most recognised as large trees. ...
, ribbonwood, māhoe, cabbage trees,
kānuka ''Kunzea ericoides'', commonly known as kānuka, kanuka, white tea-tree or burgan, is a tree or shrub in the myrtle family, Myrtaceae and is endemic to New Zealand. It has white or pink flowers similar to those of '' Leptospermum'' and from it ...
and
fuchsia ''Fuchsia'' () is a genus of flowering plants that consists mostly of shrubs or small trees. The first to be scientifically described, ''Fuchsia triphylla'', was discovered on the Caribbean island of Hispaniola (Haiti and the Dominican Republic) ...
.


References


Further reading

* * *


External links


Port Hills
at the Christchurch City Council


Photo album
showing earthquake damage in Port Hills suburbs {{Coord, 43, 35, 24, S, 172, 41, 24, E, region:NZ_type:adm1st, display=title Mountain biking in New Zealand Mountain ranges of Canterbury, New Zealand Geography of Christchurch