Roper River

Last updated

Roper
StateLibQld 1 113736 Goodwill (ship).jpg
The Goodwill on the Roper River
Australia Northern Territory relief location map.png
Red pog.svg
Location of the Roper River mouth in the Northern Territory
Native nameRopa Riba  (Australian Kriol)
Location
CountryAustralia
Territory Northern Territory
Physical characteristics
Source confluenceWaterhouse River and Roper Creek
 • locationeast of Mataranka
 • coordinates 14°55′58″S133°08′59″E / 14.93278°S 133.14972°E / -14.93278; 133.14972
 • elevation126 m (413 ft)
Mouth Limmen Bight
 • location
 Gulf of Carpentaria
 • coordinates
 14°42′40″S135°19′42″E / 14.71111°S 135.32833°E / -14.71111; 135.32833 Coordinates: 14°42′40″S135°19′42″E / 14.71111°S 135.32833°E / -14.71111; 135.32833
 • elevation
0 m (0 ft)
Length1,010 km (630 mi)
Basin size81,794 km2 (31,581 sq mi)
Discharge 
 • average158.4 m3/s (5,590 cu ft/s)
Basin features
Tributaries 
 • leftChambers River, Jalboi River
 • right Strangways River, Hodgson River
National park Elsey National Park
[1]

The Roper River is a large perennial river located in the Katherine region of the Northern Territory of Australia.

Contents

Location and features

Formed by the confluence of the Waterhouse River and Roper Creek, the Roper River rises east of Mataranka in the Elsey National Park and flows generally east for over 1,000 kilometres (620 mi) to meet the sea in Limmen Bight on the Gulf of Carpentaria. The river is joined by fifteen tributaries including the Chambers, Strangways, Jalboi, Hodgson and the Wilton Rivers. The river descends 126 metres (413 ft) over its 1,010-kilometre (630 mi) course [1] and has a catchment area of 81,794 square kilometres (31,581 sq mi), which is one of the largest river catchment areas in the Northern Territory. [2] The Roper River is navigable for about 145 kilometres (90 mi), until the tidal limit at Roper Bar, and forms the southern boundary of the region known as Arnhem Land. Mataranka Hot Springs and the township of Mataranka lie close to the river at its western end. Port Roper lies near its mouth on Limmen Bight.

The river has a mean annual outflow of 5,000 gigalitres (1.1×1012 imp gal; 1.3×1012 US gal). [3]

Etymology

The first European to explore the Roper River was Ludwig Leichhardt in 1845 as he made his way from Moreton Bay to Port Essington. Leichhardt crossed the river at Roper Bar, a rocky shelf which conveniently lies at the high tide limit on the river. He named the river after John Roper, a member of the expedition. [4]

Roper River Mission

The Roper River Mission was established by the Church of England Missionary Society in 1908. After it was closed in 1968, the government took over management of the community. [5] In 1988, control of the town was handed to the Yugul Mangi Community Government Council, and the township was renamed Ngukurr. [6]

See also

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References

  1. 1 2 "Map of Roper River, NT". Bonzle Digital Atlas of Australia. Retrieved 11 May 2015.
  2. ↑ "Overview of the Roper River Catchment" (PDF). Roper River Catchment: An Assessment of the Physical and Ecological Condition of the Roper River and its Major Tributaries. Northern Territory Government, Department of Land Resource Management. January 2001. Archived from the original (PDF) on 1 April 2015. Retrieved 1 May 2015.
  3. ↑ "Roper River" (PDF). TRaCK. 2009. Retrieved 12 May 2015.
  4. ↑ "Roper, John (1822–1895)". Australian Dictionary of Biography. Australian National University. 1976. Retrieved 1 May 2015.
  5. ↑ "Profile". Northern Territory Government. Dept of Community Welfare. Archived from the original on 23 January 2015. Retrieved 23 January 2015.
  6. ↑ "Roper River Mission - Place". National Centre for Indigenous Genomics. The Australian National University. 14 May 2015. Retrieved 1 May 2020.


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