Nepean River

Nepean River
Cowpasture River, Mittagong River, London River[1]
Nepean River, Looking north towards Penrith, 2006
Map
EtymologyIn honour of Evan Nepean, in 1789[1]
Native nameYandhai (Dharuk)
Location
CountryAustralia
StateNew South Wales
RegionSydney Basin (IBRA), Southern Highlands, Macarthur, Greater Western Sydney
DistrictWingecarribee, Wollondilly, Camden, Penrith, Hawkesbury
CityPenrith
Physical characteristics
SourceMittagong Range
 • locationnear Robertson
 • coordinates34°33′59″S 150°36′01″E / 34.56639°S 150.60028°E / -34.56639; 150.60028
 • elevation766 m (2,513 ft)
Mouthconfluence with the Grose River to form the Hawkesbury River
 • location
near Yarramundi
 • coordinates
33°36′32″S 150°41′58″E / 33.60889°S 150.69944°E / -33.60889; 150.69944
 • elevation
92 m (302 ft)
Length178 km (111 mi)
Basin features
River systemHawkesbury-Nepean catchment
Tributaries 
 • leftErskine Creek, Breakfast Creek (New South Wales), Warragamba River, Glenbrook Creek
 • rightBurke River (New South Wales), Cordeaux River, Cataract River (Wollondilly)
National parkBlue Mountains National Park
[2]
Aerial views of Nepean River between Douglas Park and Menangle

The Nepean River (Darug: Yandhai[1]), is a major perennial river, located in the south-west and west of Sydney, New South Wales, Australia. The Nepean River, and, continuing by its downstream name, the Hawkesbury River, almost encircles the metropolitan region of Sydney.

The headwaters of the Nepean River rise near Robertson, about 100 kilometres (62 mi) south of Sydney and about 15 kilometres (9.3 mi) from the Tasman Sea. The river flows north in an unpopulated water catchment area into Nepean Reservoir, which supplies potable water for Sydney. North of the dam, the river forms the western edge of Sydney, flowing past the town of Camden and the city of Penrith, south of which flowing through the Nepean Gorge. Near Wallacia it is joined by the dammed Warragamba River; and north of Penrith, near Yarramundi, at its confluence with the Grose River, the Nepean becomes the Hawkesbury River.

  1. ^ a b c "Nepean River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Edit this at Wikidata
  2. ^ "Map of Nepean River, NSW". Bonzle Digital Atlas of Australia. Archived from the original on 29 August 2016. Retrieved 24 February 2013.