Tonalli River

The Tonalli River, a perennial river[1] that is part of the Hawkesbury-Nepean catchment, is located in the Blue Mountains region of New South Wales, Australia.

StateNew South Wales
RegionSydney Basin (IBRA), Blue Mountains
Local government areaWollondilly
Physical characteristics
SourceTonalli Range
  locationnear Mount Armour
  elevation676 m (2,218 ft)
Mouthconfluence with the Wollondilly River to form Lake Burragorang
Yerranderie State Conservation Area
118 m (387 ft)
Length26 km (16 mi)
Basin features
River systemHawkesbury-Nepean catchment
National parksNattai, Kanangra-Boyd

Course and features

The Tonalli River rises on the eastern alopes of Mount Marrup within the Tonalli Range in remote country within the Greater Blue Mountains Area World Heritage Site, and flows generally east southeast, east northeast, and then east southeast, before reaching its confluence with the Wollondilly River within Lake Burragorang in Yerranderie State Conservation Area. The river descends 559 metres (1,834 ft) over its 26-kilometre (16 mi) course.[2]

The river flows through parts of the Nattai and Kanangra-Boyd national parks and is a source of water for the Sydney region.[2]

See also


  1. "Tonalli River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 3 April 2013.
  2. "Tonalli River, NSW". Bonzle Digital Atlas of Australia. Retrieved 3 April 2013.

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