Opotoru River

Opotoru River

Opotoru River in the lower part of its valley
Country New Zealand
Basin
River mouth Raglan Harbour
Physical characteristics
Length 14 km (9 mi)
The tidal creek and saltmarsh, about 1 kilometre (0.6 mi) below the photo above

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.[1] 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.[2]

Name

The Oct 1947 Lands and Survey one inch map shows the name 'Opotoru R' applied to the tidal creek of the harbour and 'Opotoru S' to the stretch through Te Mata. The 1971 2nd edition and current 1:50,000 maps (see http://www.topomap.co.nz/NZTopoMap/37544) show 'Opotoru River' for the lower part of the waterway, but 'Te Mata Stream' for the part up from the Te Hutewai Stream confluence. 'Te Mata Stream' appears to have been named 'Takapuanui Stream' in the 1910 postcards (see link below) and in the 1915 Bradbury's Illustrated Guide to The Raglan & Kawhia District.

Geology

The Geology of the Raglan-Kawhia Area[3] says, "The N-striking faults are evidenced by trends of the Tasman Sea coastline and probably by stream drainages such as that of the Opotoru River c 6 km E of Karioi summit." and "The base, consisting of interbedded conglomerate, sandstone, and locally siltstone, is strongly unconformable on Te Kuiti Group rocks south of Raglan at the Opotoru River estuary (R 14/751741)".

History

Raglan County Hills and Sea[4] says, "On 11 January [1854] McLean purchased a small part of Te Mata at the SW corner of the Whaingaroa Block. The description of its boundaries, as recorded in the Deed of Sale, is worth quoting in part, if only for the quaintness of the wording: In the N the boundary was "the Government-cut line from the Opotoru Creek to the hole dug by C. W. Ligar Esquire; on the south side from the aforesaid hole to the root of the totara tree as left by William Naylor on making a canoe of the said tree, this root of the totara tree being close to the Opotoru Creek," which formed the W limit of the area. On 6 May a further section of Te Mata land was acquired, making a total of 630 acres. By 1858, 2130 acres of undulating forest land at Te Mata had been secured."

See also

References

  1. ↑ "Place Name Detail: Opotoru River". New Zealand Geographic Placenames Database. Land Information New Zealand. Retrieved 2010-04-23.
  2. ↑ Regional Council 2013 report on the work of Whaingaroa Harbour Care page 4
  3. ↑ Geology of the Raglan-Kawhia Area: Institute of Geological & Nuclear Sciences (N.Z.), Barry Clayton Waterhouse, P. J. White 1994 ISBN 0-478-08837-X
  4. ↑ https://books.google.com/books/about/Raglan_County_Hills_and_Sea.html?id=UssYAAAACAAJ&redir_esc=y (page 62)

Coordinates: 37°49′55″S 174°52′14″E / 37.831986°S 174.870499°E / -37.831986; 174.870499

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