The Huon River rises below Junction Hill in the
Southwest National Park with much of its upper
catchment drawn from the Marsden Range and associated peaks including Mount Anne, Mount Bowes and Mount Wedge. The river flows generally south through the south-eastern portion of
Lake Pedder and is impounded at the
Scotts Peak Dam. Thereafter, the river flows generally south-east to the
Tahune Airwalk. From its source to mouth, the river is joined by 26 tributaries including the
Anne,
Cracroft,
Picton,
Weld,
Arve,
Russell,
Little Denison and
Mountain rivers. After passing through the rural township of
Glen Huon the river flows down rapids to merge with the sea water and become tidal. From there it flows through , and (Port Cygnet). When the river meets its
mouth and empties into the D'Entrecasteaux Channel at Surveyors Bay where the river is more than wide. In the lower reaches, the average depth of wide river is and maximum depth is . ==Etymology==