|An open mature wave dominated barrier estuary; or perennial stream|
|State||New South Wales|
|Regions||South East Corner (IBRA), South Coast|
|Local government area||Eurobodalla|
|- right||Jeremadra Creek|
|- location||Rosedale North|
|- elevation||91 m (299 ft)|
|Mouth||Tasman Sea, South Pacific Ocean|
|- location||Mossy Point|
|Length||16 km (10 mi)|
|Depth||1 m (3 ft)|
|Basin||92 km2 (36 sq mi)|
|Area||1.8 km2 (1 sq mi)|
|Website: NSW Environment & Heritage webpage|
Course and features
Tomaga River rises about 2.5 kilometres (1.6 mi) northeast of Mogo Hill and flows generally southwest and then southeast, joined by one minor tributary, before reaching its mouth at the Tasman Sea of the South Pacific Ocean at Mossy Point. The river descends 92 metres (302 ft) over its 16 kilometres (9.9 mi) course.
The catchment area of the river is 91.9 square kilometres (35.5 sq mi) with a volume of 1,411 megalitres (49.8×106 cu ft) over a surface area of 1.8 square kilometres (0.69 sq mi), at an average depth of 1 metre (3 ft 3 in).
- 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.
- "Tomaga River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 27 May 2013.
- "Map of Tomaga River, NSW". Bonzle Digital Atlas of Australia. Retrieved 27 May 2013.
- "Tomaga River". Coastal and floodplain management: Coastal zone management: Estuaries of NSW. NSW Environment and Heritage. 27 April 2012. Retrieved 27 May 2013.
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