Related Research Articles
Waikato is a local government region of the upper North Island of New Zealand. It covers the Waikato District, Waipa District, Matamata-Piako District, South Waikato District and Hamilton City, as well as Hauraki, Coromandel Peninsula, the northern King Country, much of the Taupō District, and parts of Rotorua District. It is governed by the Waikato Regional Council.
The Waikato River is the longest river in New Zealand, running for 425 kilometres (264 mi) through the North Island. It rises on the eastern slopes of Mount Ruapehu, joining the Tongariro River system and flowing through Lake Taupō, New Zealand's largest lake. It then drains Taupō at the lake's northeastern edge, creates the Huka Falls, and flows northwest through the Waikato Plains. It empties into the Tasman Sea south of Auckland, at Port Waikato. It gives its name to the Waikato region that surrounds the Waikato Plains. The present course of the river was largely formed about 17,000 years ago. Contributing factors were climate warming, forest being reestablished in the river headwaters and the deepening, rather than widening, of the existing river channel. The channel was gradually eroded as far up river as Piarere, leaving the old Hinuera channel through the Hinuera Gap high and dry. The remains of the old course are seen clearly at Hinuera, where the cliffs mark the ancient river edges. The Waikato's main tributary is the Waipā River, which converges with it at Ngāruawāhia.
The Waipā River is in the Waikato region of the North Island of New Zealand. The headwaters are in the Rangitoto Range east of Te Kuiti. It flows north for 115 kilometres (71 mi), passing through Ōtorohanga and Pirongia, before flowing into the Waikato River at Ngāruawāhia. It is the Waikato's largest tributary. The Waipā's main tributary is the Puniu River.
Auckland is one of the sixteen regions of New Zealand, which takes its name from the eponymous urban area. The region encompasses the Auckland Metropolitan Area, smaller towns, rural areas, and the islands of the Hauraki Gulf. Containing 33 percent of the nation's residents, it has by far the largest population and economy of any region of New Zealand, but the second-smallest land area.
Hauraki District is a territorial authority within the Hauraki region of New Zealand. The seat of the council is at Paeroa.
The Hauraki Gulf / Tīkapa Moana is a coastal feature of the North Island of New Zealand. It has an area of 4000 km2, and lies between, in anticlockwise order, the Auckland Region, the Hauraki Plains, the Coromandel Peninsula, and Great Barrier Island. Most of the gulf is part of the Hauraki Gulf Marine Park.
The Firth of Thames is a large bay located in the north of the North Island of New Zealand. It is the firth of the rivers Waihou and Piako, the former of which was formerly named the Thames River, and the town of Thames lies on its southeastern coast.
The Thames Valley is a non-administrative region in the North Island of New Zealand. Broadly, it is the valley component of the Waihou River catchment. The lower part of the valley is more commonly known as the Hauraki Plains. Geographically the valley extends as far as the Hinuera Gap, although this is not often referred to as such. In geographical history of New Zealand, the Thames Valley was the path of the ancestral Waikato River when it discharged into the Firth of Thames over 20,000 years ago.
The Piako River is a lowland river system that drains into the Firth of Thames on the North Island of New Zealand. Together with the Waihou River, it is one of the two main rivers systems which drains the Hauraki Plains. It is the dominant river system in the Matamata-Piako District, and on its journey it passes through the towns of Morrinsville and Ngatea.
The Hauraki Plains are a geographical feature and non-administrative area located in the northern North Island of New Zealand, at the lower (northern) end of the Thames Valley. They are located 75 kilometres south-east of Auckland, at the foot of the Coromandel Peninsula and occupy the southern portion of a rift valley bounded on the north-west by the Hunua Ranges, to the east by the Coromandel and Kaimai ranges and the west by a series of undulating hills which separate the plains from the much larger plains of the Waikato River. Broadly, the northern and southern parts of the Hauraki Plains are administered by the Hauraki District and the Matamata-Piako District respectively.
The Opotoru River is a river of the Waikato Region of New Zealand's North Island. It flows north, reaching the Raglan Harbour southwest of the town of Raglan. There is no regular monitoring of pollution, but 38 kilometres (24 mi) (31.2%) of the river has been fenced to protect it from farm stock.
The Puniu River is a river of the Waikato region of New Zealand's North Island. As a tributary of the Waipā River, and at a length of 57 kilometres (35 mi), it is one of the longest secondary tributaries in New Zealand.
The Waitetuna River is a river of the Waikato Region of New Zealand's North Island. It flows generally northwest from its sources southwest of Whatawhata to reach the southeastern coast of the Raglan Harbour.
Water pollution in New Zealand is an increasing concern for those who use and care for waterways and for New Zealand regulatory bodies. An increase in population is linked to an increase in water pollution, due to a range of causes such as rural land use, industrial use and urban development. Fresh water quality is under pressure from agriculture, hydropower, urban development, pest invasions and climate change. While pollution from point sources has been reduced, diffuse pollution such as nutrients, pathogens and sediments development and from stormwater in towns is not under control. There are more than 800 water quality monitoring sites around New Zealand that are regularly sampled.
The Waingaro River is a river of the Waikato region of New Zealand's North Island. It flows generally southwest from its origins near Glen Afton and Glen Massey, west of Ngāruawāhia, to reach a northern arm of Raglan Harbour. Its main tributary is Kahuhuru Stream, which Highway 22 follows for several kilometres. Tributaries total about 170 kilometres (110 mi). At Waingaro it is fed by a hot spring.
The Waitakaruru Stream is a major tributary of the Piako River, within the Waikato region of New Zealand's North Island. It should not be confused with the similarly named Waitakaruru River, which is also in the Waikato Region.
The Mangatangi River, or Mangatangi Stream, originates on the eastern slopes of the Hunua Ranges in New Zealand and flows roughly southwards until it is joined by the Ruaotehuia Stream just north of State Highway 2 between Mangatawhiri and Maramarua, where it becomes the Maramarua River. Mangatangi can be translated as manga tangi to stream of weeping, or as rippling stream, or babbling brook.
Hapuakohe Range of hills is aligned north-south, between the Waikato River and the Hauraki Plains in the Waikato region of New Zealand. It is separated from the Taupiri Range by an air-gap at Mangawara, where the Waikato flowed about 20,000 years ago.
Kopuarahi is a rural settlement and farming community in the Hauraki District and Waikato region of New Zealand's North Island.
Waharau Regional Park is a regional park situated in the Hauraki District and the Waikato Region of New Zealand's North Island, four kilometres north of Whakatīwai Regional Park. It is just south of the border with the Auckland Region, and is owned and operated by Auckland Council. It runs from the eastern side of the Hunua Ranges, where it adjoins Hunua Ranges Regional Park, down to the Firth of Thames coast.
References
- ↑ "Mangrove Habitat Expansion in the Southern Firth of Thames: Sedimentation Processes and Coastal Hazards Mitigation". Waikato Regional Council. Retrieved 29 December 2018.
- ↑ "Waitakaruru River at Coxhead Rd Bridge". Waikato Regional Council. Retrieved 29 December 2018.
- ↑ Vant, Bill (November 2016). "Water quality and sources of nitrogen and phosphorus in the Hauraki rivers, 2006–15" (PDF). Waikato Regional Council.
- ↑ Vant, Bill. Waikato Regional Council Technical Report 2018/30 Trends in river water quality in the Waikato region, 1993-2017.
"Place name detail: Waitakaruru River". New Zealand Gazetteer. New Zealand Geographic Board . Retrieved 12 July 2009.