Which river is formed at Launceston in Tasmania by the merging of the North Esk and South Esk rivers - a river of the same name forms much of the boundary between Devon and Cornwall?
North Esk River North Esk River The North Esk River is a major perennial river located in the northern region of Tasmania, Australia. It is one of the tributaries of the Tamar River together with the South Esk River. It starts in the Northallerton Valley below Ben Nevis in the states North East, joining with the St Patricks River before flowing through Launceston. Launceston's Old Seaport tourist feature is located on the North Esk River. The river becomes tidal downstream of Hoblers Bridge to where it meets the Tamar. It is sometimes subject to flooding, especially in East Launceston suburbs. The largest tributary
South Esk River South Esk River The South Esk River, the longest river in Tasmania, is a major perennial river located in the northern region of Tasmania, Australia. The South Esk springs from the eastern foothills of the Ben Lomond plateau near Mathinna and the river's course describes an arc around the entire southern promontory of the mountain - running through Fingal, Avoca and Evandale before wending its way northwest through Longford and Hadspen. The river merges with the tributary Meander River, then flows through the narrows of the Cataract Gorge to finally meet the North Esk River at Launceston. From this confluence