The Mersey River is a 147 km long river on the north-west coast of Tasmania, Australia. The city of Devonport is situated at the rivers mouth on Bass Strait.
The Mersey River originates in Lake Meston, located within the Walls of Jerusalem National Park in Tasmanias Central Highlands. The river descends through a series of alpine lakes, including Lake Youd, Lake Rowallan, and Lake Parangana, before reaching the Bass Strait at Devonport. The rivers course is characterised by its passage through glaciated landscapes, including U-shaped valleys and moraines formed during the Pleistocene epoch.
