South Esk River
The South Esk River is the longest river in Tasmania. It starts in the mountains near Fingal flowing through Avoca, Evandale, Longford, Hadspen and finally Launceston. The river is dammed at Trevallyn Dam near Launceston and used for the city's Hydro Electricity scheme. Although most of the water is dammed at Lake Trevallyn, some flows on into the Cataract Gorge where it becomes a tributary to the Tamar River, and the outflow from the power station also joins the Tamar River downstream of Launceston. The river is constantly subject to flooding and overflows at Lake Trevallyn cause a scenic display of rapids gushing through the Gorge.
The river's two largest tributaries are the Macquarie River and the Meander River, with lesser tributaries being the Nile River, River Tyne, Stories Creek and the Break O'Day River upstream of the junction with the Macquarie River. The Meander River's main tributaries are the Liffey River and Quamby Brook and the Macquarie River's main tributaries are the Lake River, Isis River, Elizabeth River, Blackman River, Tooms River and Tin Dish Rivulet.
- 1384.6 - Statistics - Tasmania, 2006
- Bladen, F. M. (Frank Murcott), ed. (1897), Historical records of New South Wales, Volume 5—King, 1803-1805, Sydney: Charles Potter, Government Printer, p. 497
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