Lake St Clair (Tasmania)

Lake St Clair
Lake St Clair from Echo Point with Mount Ida to the left
Lake St Clair Location in Tasmania
Location	Central Highlands, Tasmania
Coordinates	42°4′S 146°10′E / 42.067°S 146.167°E / -42.067; 146.167
Type	Freshwater lake
River sources	Narcissus River Cuvier River Hamilton Creek
Primary outflows	River Derwent
Basin countries	Australia
Designation	Cradle Mountain-Lake St Clair National Park Tasmanian Wilderness World Heritage Site
Max. length	15 km (9.3 mi)
Max. width	3 km (1.9 mi)
Surface area	45 km2 (17 sq mi)
Max. depth	215 m (705 ft)
Surface elevation	737 m (2,418 ft) AHD

Lake St Clair or leeawulenna is a natural freshwater lake located in the Central Highlands area of Tasmania, Australia. The lake forms the southern end of the Cradle Mountain-Lake St Clair National Park. It has an area of approximately 45 square kilometres (17 sq mi), and a maximum depth of 215 metres (705 ft), making it Australia's deepest lake.^[1]

The lake is fed by Narcissus River, Cuvier River, and Hamilton Creek and marks the start of the River Derwent.^[2]

The locality of Lake St Clair is in the local government areas of Central Highlands (24%), Meander Valley (12%), and West Coast (64%). The southern end of the lake is about 106 kilometres (66 mi) north-west of the town of Hamilton.^[3]