Lake Mackintosh

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Lake Mackintosh
Map showing Lake Mackintosh in Tasmania
Location Tullah, Tasmania
Coordinates 41°41′S 145°40′E / 41.683°S 145.667°E / -41.683; 145.667Coordinates: 41°41′S 145°40′E / 41.683°S 145.667°E / -41.683; 145.667
Type Reservoir
Part of Pieman power development
River sources
Basin countries Australia
First flooded 1980s
Max. length 17.5 km (10.9 mi)
Max. width 3.5 km (2.2 mi)
Surface area 3,100 ha (7,700 acres)
Max. depth 65 m (213 ft)
Shore length1 83 km (52 mi)
Surface elevation 229.5 m (753 ft) AHD
Islands 3 large, 5 small islets
References [1]
1 Shore length is not a well-defined measure.

Lake Mackintosh is a 17.5-kilometre-long (10.9 mi) reservoir with a surface area of 3,100-hectare (7,700-acre) that forms part of the Pieman power development running north-south past Mount Farrell, adjacent to the town of Tullah in Tasmania.


Fed by the damming of the Mackintosh, Sophia, Fury, Southwell, and Brougham rivers and Mackintosh Creek, water from the lake feeds Mackintosh Power Station through Lake Rosebery.[2]

The lake was created in the 1980s and the main basin of the lake was originally a Button Grass swamp prior to inundation.

Lake Mackintosh is impounded by two dams, the main Mackintosh Dam and the smaller Tullabardine Dam. The lake's deepest point is roughly 60 metres (200 ft) deep at the base of the main dam. It is one of the larger sized water impoundments of the Pieman power scheme.[3]

The Murchison River is feeds into Lake Mackintosh through the Murchison Dam, to the south. The Murchison Highway borders the lake to the west.

The Cradle Mountain-Lake St Clair National Park as a component part of the Tasmanian Wilderness World Heritage Area, has its western boundary lying to the east of the lake shores.

See also[edit]


  1. ^ "Map of Lake Mackintosh, TAS". Bonzle Digital Atlas of Australia. n.d. Retrieved 25 May 2018.
  2. ^ "Lake Mackintosh". Discover Tasmania. 2018. Retrieved 25 May 2018.
  3. ^ "Tasmanian Wilderness World Heritage Area and Surrounding Land Use 2007" (PDF) (Map). Department of the Environment, Water, Heritage and the Arts. Commonwealth of Australia. 2008. Archived from the original (PDF) on 9 March 2010. Retrieved 25 May 2018.