The Mangles River is in the

South Island The South Island ( , 'the waters of Pounamu, Greenstone') is the largest of the three major islands of New Zealand by surface area, the others being the smaller but more populous North Island and Stewart Island. It is bordered to the north by ...

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

. Its main tributary is the Tūtaki River but it is also fed by water flowing off the

Braeburn Range The Braeburn Range is a mountain range in the Tasman Region of New Zealand's South Island. It lies to the west of Lake Rotoroa and much of the eastern flank of the range is within the Nelson Lakes National Park. The range runs south-southeast, ...

. It feeds into the

Buller River The Buller River () is a river in the South Island of New Zealand. The Buller has the highest flow of any river in the country during floods, though it is only the 13th longest river; it runs for from Lake Rotoiti (Tasman), Lake Rotoiti throu ...

near the

town A town is a type of a human settlement, generally larger than a village but smaller than a city. The criteria for distinguishing a town vary globally, often depending on factors such as population size, economic character, administrative stat ...

of Murchison. The river is popular destination for

kayaking Kayaking is the use of a kayak for moving over water. It is distinguished from canoeing by the sitting position of the paddler and the number of blades on the paddle. A kayak is a low-to-the-water, canoe-like boat in which the paddler sits fac ...

and

trout fishing Trout (: trout) is a generic common name for numerous species of carnivorous freshwater ray-finned fishes belonging to the genera ''Oncorhynchus'', ''Salmo'' and ''Salvelinus'', all of which are members of the subfamily Salmoninae in the fam ...

. William Fox was the

New Zealand Company The New Zealand Company, chartered in the United Kingdom of Great Britain and Ireland, United Kingdom, was a company that existed in the first half of the 19th century on a business model that was focused on the systematic colonisation of New Ze ...

agent in

Nelson Nelson may refer to: Arts and entertainment * ''Nelson'' (1918 film), a historical film directed by Maurice Elvey * ''Nelson'' (1926 film), a historical film directed by Walter Summers * ''Nelson'' (opera), an opera by Lennox Berkeley to a lib ...

when he explored the Buller as far south as Murchison in February 1846, with

Thomas Brunner Thomas Brunner (April 1821 – 22 April 1874) was an English-born Surveying, surveyor and explorer remembered for his exploration of the West Coast, New Zealand, West Coast of New Zealand's South Island. Brunner was born in April 1821 in Oxfo ...

and

Charles Heaphy Charles Heaphy VC (1820 – 3 August 1881) was an English-born New Zealand explorer and recipient of the Victoria Cross (VC), the highest military award for gallantry "in the face of the enemy" that could be awarded to British and Empire forc ...

. They renamed the lower section of the Tiraumea River, after the English MP,

Ross Donnelly Mangles Ross Donnelly Mangles (1801 – 1877) was an English politician, Member of Parliament for Guildford between 1841 and 1857. In the latter year he became Chairman of the East India Company. Career and appointments He was the son of James Mangles ...

, one of the company's directors. The

official name A legal name is the name that identifies a person for legal, administrative and other official purposes. A person's legal birth name generally is the name of the person that was given for the purpose of Civil registry, registration of the birth ...

was

gazetted A gazette is an official journal, a newspaper of record, or simply a newspaper. In English and French speaking countries, newspaper publishers have applied the name ''Gazette'' since the 17th century; today, numerous weekly and daily newspapers ...

as Mangles River on 27 May 2021. River pollution has been monitored since 2016. About 75% of the catchment is in native forest, so that water quality is generally good, the only exception being

nitrates Nitrate is a polyatomic ion with the chemical formula . Salts containing this ion are called nitrates. Nitrates are common components of fertilizers and explosives. Almost all inorganic nitrates are soluble in water. An example of an insol ...

. The river is bridged by SH6 near its confluence with the Buller.

References

Rivers of the Tasman District Rivers of New Zealand {{Tasman-river-stub