Coxs River

Coxs
River
Coxs River near Mount Cookem
Name origin: In honour of William Cox
Country	Australia
State	New South Wales
Regions	Sydney Basin (IBRA), Central Tablelands, Blue Mountains, Macarthur
Local government areas	Blue Mountains, Lithgow, Wollondilly
Part of	Hawkesbury-Nepean catchment
Tributaries
- left	Blackheath Creek, Pulpit Hill Creek, Megalong Creek, Galong Creek, Breakfast Creek (New South Wales), Cedar Creek (New South Wales), Kedumba River
- right	Ganbenang Creek, Long Swamp Creek, Little River (Oberon), Jenolan River, Kanangra Creek, Kowmung River, Wollondilly River, Butchers Creek
Source	Gardiners Gap, within Ben Bullen State Forest
- location	Cullen Bullen
- elevation	1,040 m (3,412 ft)
Mouth	confluence with Warragamba River to form Lake Burragorang
- elevation	114 m (374 ft)
Length	155 km (96 mi)
Reservoirs	Lake Wallace, Lake Lyell, Lake Burragorang
National parks	Blue Mountains, Kanangra-Boyd

The Coxs River, a perennial river that is part of the Hawkesbury-Nepean catchment, is located in the Central Tablelands, Blue Mountains, and Macarthur regions of New South Wales, Australia.

The Coxs River rises in Gardiners Gap, within Ben Bullen State Forest, east of Cullen Bullen, and flows through the Megalong Valley and parts of the Greater Blue Mountains Area World Heritage Site including the Blue Mountains and Kanangra-Boyd national parks, heading generally south and then east, joined by fifteen tributaries including the Little, Jenolan, Kedumba, Kowmung, and Wollondilly rivers, before reaching its confluence with the Warragamba River to form Lake Burragorang. The river descends 931 metres (3,054 ft) over its 155-kilometre (96 mi) course.

The river is impounded at Lake Wallace where it forms a cooling source for Wallerawang Power Station; at Lake Lyell where it is used for water supply for the city of Lithgow and water cooling for Wallerawang Power Station; and at Lake Burragorang, a major water supply source for greater metropolitan Sydney.