Wonboyn River

The Wonboyn River, an open youthful wave dominated barrier estuary[3] or perennial stream,[1] is located in the South Coast region of New South Wales, Australia.

Wonboyn River
Narrabarba Creek[1]
StateNew South Wales
RegionSouth East Corner (IBRA), South Coast
Local government areaBega Valley
Physical characteristics
SourceNarrabarba Creek and Watergums Creek
  elevation44 m (144 ft)
MouthTasman Sea, South Pacific Ocean
Disaster Bay, near Green Cape
Length18 km (11 mi)
Basin size335 km2 (129 sq mi)
  average2.7 m (8 ft 10 in)
Basin features
  leftStevens Creek

Course and features

Wonboyn River is formed by the confluence of Narrabarba Creek and Watergums Creek, within Ben Boyd National Park, east of the Princes Highway and southeast of the locality of Kiah, approximately 3 kilometres (1.9 mi) north of Timbillica Hill. The river flows generally east, northeast, and then southeast, joined by one minor tributary, flowing through Wonboyn Lake, before reaching its mouth within Disaster Bay, at the Tasman Sea of the South Pacific Ocean southeast of Green Cape.[1] The river descends 44 metres (144 ft) over its 18 kilometres (11 mi) course.[2]

The catchment area of the river is 335 square kilometres (129 sq mi) with a volume of 9,809 megalitres (346.4×10^6 cu ft) over a surface area of 4.2 square kilometres (1.6 sq mi), at an average depth of 2.7 metres (8 ft 10 in).[4]

See also


  1. "Wonboyn River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 1 June 2013.
  2. "Map of Wonboyn River, NSW". Bonzle Digital Atlas of Australia. Retrieved 1 June 2013.
  3. Roy, P. S; Williams, R. J; Jones, A. R; Yassini, I; et al. (2001). "Structure and Function of South-east Australian Estuaries". Estuarine, Coastal and Shelf Science. 53: 351–384. doi:10.1006/ecss.2001.0796.
  4. "Wonboyn River". Coastal and floodplain management: Coastal zone management: Estuaries of NSW. NSW Environment and Heritage. 27 April 2012. Retrieved 1 June 2013.

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