|Coutts Water, The Harness Cask|
Nymboida River, 2008
|State||New South Wales|
|IBRA||NSW North Coast|
|Municipalities||Bellingen, Clarence Valley|
|Part of||Clarence River catchment|
|- left||Allans Water, Blicks River, Clouds Creek, Boyd River|
|- right||Deer Park Creek, Little Murray River, Bielsdown River, Wild Cattle Creek, Little Nymboida River, Boundary Creek|
|Source||Barren Mountain, Great Dividing Range|
|- location||Bellinger River National Park|
|- elevation||1,370 m (4,495 ft)|
|Mouth||confluence with the Mann River|
|- location||below Mount Gundahl, within the Nymboida National Park|
|- elevation||119 m (390 ft)|
|Length||165 km (103 mi)|
|National parks||Bellinger River NP, Nymboida NP, Nymboi-Binderay NP|
|Nature reserve||Bagul Waajaarr|
|Falls||Rob Roys Falls|
Course and features
Nymboida River rises in the northern foothills of the Barren Mountain, on the slopes of the Great Dividing Range, within Bellinger River National Park, west of Dorrigo. Annual high rainfall on the Dorrigo Plateau produces strong river flows during most seasons. The river flows in a meandering course generally northeast, joined by nine tributaries including the Little Murray, Bielsdown, Blicks, Little Nymboida, and Boyd rivers, before reaching its confluence with the Mann River, below Mount Gundahl, within the Nymboida National Park. The river descends 1,250 metres (4,100 ft) over its 165 kilometres (103 mi) course.
Flowing through Nymboi-Binderay National Park from Platypus Flat to The Junction confluence with the Little Nymboida River, there is a 27 kilometres (17 mi) of rapid and pool sequences, making this a popular kayaking and white water rafting venue. Located 13 kilometres (8.1 mi) from the source is Rob Roys Falls, a 90 metres (300 ft) cascade while further down river lies The Silent Pool, a geological mystery where the river goes underground via a fault line and returns under a large pool.
The river is also a stronghold for the endangered Eastern Freshwater cod where it is quite common in several reaches.
Waters released from the hydro-electric power station on the Nymboida River create one of Australia’s most difficult canoe courses and as such are the site of many white-water rafting competitions. Several companies offer organised rafting trips on the river.
- "Nymboida River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 1 March 2013.
- "Map of Nymboida River, NSW". Bonzle Digital Atlas of Australia. Retrieved 1 March 2013.
- "Discover Australia's National Parks". Hema Maps (Milsons Point: Random House Australia). 1997. p. 145. ISBN 1-875992-47-2.
- Reader's Digest Illustrated Guide to Australian Places. Sydney, NSW: Reader's Digest. 1993. p. 156. ISBN 0-86438-399-1.